<?php
namespace Illuminate\Support;
use Closure;
use Illuminate\Support\Traits\Macroable;
use JsonException;
use League\CommonMark\Environment\Environment;
use League\CommonMark\Extension\GithubFlavoredMarkdownExtension;
use League\CommonMark\Extension\InlinesOnly\InlinesOnlyExtension;
use League\CommonMark\GithubFlavoredMarkdownConverter;
use League\CommonMark\MarkdownConverter;
use Ramsey\Uuid\Codec\TimestampFirstCombCodec;
use Ramsey\Uuid\Generator\CombGenerator;
use Ramsey\Uuid\Uuid;
use Ramsey\Uuid\UuidFactory;
use Symfony\Component\Uid\Ulid;
use Traversable;
use voku\helper\ASCII;
class Str
{
use Macroable;
/**
* The cache of snake-cased words.
*
* @var array
*/
protected static $snakeCache = [];
/**
* The cache of camel-cased words.
*
* @var array
*/
protected static $camelCache = [];
/**
* The cache of studly-cased words.
*
* @var array
*/
protected static $studlyCache = [];
/**
* The callback that should be used to generate UUIDs.
*
* @var callable|null
*/
protected static $uuidFactory;
/**
* The callback that should be used to generate random strings.
*
* @var callable|null
*/
protected static $randomStringFactory;
/**
* Get a new stringable object from the given string.
*
* @param string $string
* @return \Illuminate\Support\Stringable
*/
public static function of($string)
{
return new Stringable($string);
}
/**
* Return the remainder of a string after the first occurrence of a given value.
*
* @param string $subject
* @param string $search
* @return string
*/
public static function after($subject, $search)
{
return $search === '' ? $subject : array_reverse(explode($search, $subject, 2))[0];
}
/**
* Return the remainder of a string after the last occurrence of a given value.
*
* @param string $subject
* @param string $search
* @return string
*/
public static function afterLast($subject, $search)
{
if ($search === '') {
return $subject;
}
$position = strrpos($subject, (string) $search);
if ($position === false) {
return $subject;
}
return substr($subject, $position + strlen($search));
}
/**
* Transliterate a UTF-8 value to ASCII.
*
* @param string $value
* @param string $language
* @return string
*/
public static function ascii($value, $language = 'en')
{
return ASCII::to_ascii((string) $value, $language);
}
/**
* Transliterate a string to its closest ASCII representation.
*
* @param string $string
* @param string|null $unknown
* @param bool|null $strict
* @return string
*/
public static function transliterate($string, $unknown = '?', $strict = false)
{
return ASCII::to_transliterate($string, $unknown, $strict);
}
/**
* Get the portion of a string before the first occurrence of a given value.
*
* @param string $subject
* @param string $search
* @return string
*/
public static function before($subject, $search)
{
if ($search === '') {
return $subject;
}
$result = strstr($subject, (string) $search, true);
return $result === false ? $subject : $result;
}
/**
* Get the portion of a string before the last occurrence of a given value.
*
* @param string $subject
* @param string $search
* @return string
*/
public static function beforeLast($subject, $search)
{
if ($search === '') {
return $subject;
}
$pos = mb_strrpos($subject, $search);
if ($pos === false) {
return $subject;
}
return static::substr($subject, 0, $pos);
}
/**
* Get the portion of a string between two given values.
*
* @param string $subject
* @param string $from
* @param string $to
* @return string
*/
public static function between($subject, $from, $to)
{
if ($from === '' || $to === '') {
return $subject;
}
return static::beforeLast(static::after($subject, $from), $to);
}
/**
* Get the smallest possible portion of a string between two given values.
*
* @param string $subject
* @param string $from
* @param string $to
* @return string
*/
public static function betweenFirst($subject, $from, $to)
{
if ($from === '' || $to === '') {
return $subject;
}
return static::before(static::after($subject, $from), $to);
}
/**
* Convert a value to camel case.
*
* @param string $value
* @return string
*/
public static function camel($value)
{
if (isset(static::$camelCache[$value])) {
return static::$camelCache[$value];
}
return static::$camelCache[$value] = lcfirst(static::studly($value));
}
/**
* Get the character at the specified index.
*
* @param string $subject
* @param int $index
* @return string|false
*/
public static function charAt($subject, $index)
{
$length = mb_strlen($subject);
if ($index < 0 ? $index < -$length : $index > $length - 1) {
return false;
}
return mb_substr($subject, $index, 1);
}
/**
* Determine if a given string contains a given substring.
*
* @param string $haystack
* @param string|iterable<string> $needles
* @param bool $ignoreCase
* @return bool
*/
public static function contains($haystack, $needles, $ignoreCase = false)
{
if ($ignoreCase) {
$haystack = mb_strtolower($haystack);
}
if (! is_iterable($needles)) {
$needles = (array) $needles;
}
foreach ($needles as $needle) {
if ($ignoreCase) {
$needle = mb_strtolower($needle);
}
if ($needle !== '' && str_contains($haystack, $needle)) {
return true;
}
}
return false;
}
/**
* Determine if a given string contains all array values.
*
* @param string $haystack
* @param iterable<string> $needles
* @param bool $ignoreCase
* @return bool
*/
public static function containsAll($haystack, $needles, $ignoreCase = false)
{
foreach ($needles as $needle) {
if (! static::contains($haystack, $needle, $ignoreCase)) {
return false;
}
}
return true;
}
/**
* Determine if a given string ends with a given substring.
*
* @param string $haystack
* @param string|iterable<string> $needles
* @return bool
*/
public static function endsWith($haystack, $needles)
{
if (! is_iterable($needles)) {
$needles = (array) $needles;
}
foreach ($needles as $needle) {
if ((string) $needle !== '' && str_ends_with($haystack, $needle)) {
return true;
}
}
return false;
}
/**
* Extracts an excerpt from text that matches the first instance of a phrase.
*
* @param string $text
* @param string $phrase
* @param array $options
* @return string|null
*/
public static function excerpt($text, $phrase = '', $options = [])
{
$radius = $options['radius'] ?? 100;
$omission = $options['omission'] ?? '...';
preg_match('/^(.*?)('.preg_quote((string) $phrase).')(.*)$/iu', (string) $text, $matches);
if (empty($matches)) {
return null;
}
$start = ltrim($matches[1]);
$start = str(mb_substr($start, max(mb_strlen($start, 'UTF-8') - $radius, 0), $radius, 'UTF-8'))->ltrim()->unless(
fn ($startWithRadius) => $startWithRadius->exactly($start),
fn ($startWithRadius) => $startWithRadius->prepend($omission),
);
$end = rtrim($matches[3]);
$end = str(mb_substr($end, 0, $radius, 'UTF-8'))->rtrim()->unless(
fn ($endWithRadius) => $endWithRadius->exactly($end),
fn ($endWithRadius) => $endWithRadius->append($omission),
);
return $start->append($matches[2], $end)->toString();
}
/**
* Cap a string with a single instance of a given value.
*
* @param string $value
* @param string $cap
* @return string
*/
public static function finish($value, $cap)
{
$quoted = preg_quote($cap, '/');
return preg_replace('/(?:'.$quoted.')+$/u', '', $value).$cap;
}
/**
* Wrap the string with the given strings.
*
* @param string $value
* @param string $before
* @param string|null $after
* @return string
*/
public static function wrap($value, $before, $after = null)
{
return $before.$value.($after ??= $before);
}
/**
* Determine if a given string matches a given pattern.
*
* @param string|iterable<string> $pattern
* @param string $value
* @return bool
*/
public static function is($pattern, $value)
{
$value = (string) $value;
if (! is_iterable($pattern)) {
$pattern = [$pattern];
}
foreach ($pattern as $pattern) {
$pattern = (string) $pattern;
// If the given value is an exact match we can of course return true right
// from the beginning. Otherwise, we will translate asterisks and do an
// actual pattern match against the two strings to see if they match.
if ($pattern === $value) {
return true;
}
$pattern = preg_quote($pattern, '#');
// Asterisks are translated into zero-or-more regular expression wildcards
// to make it convenient to check if the strings starts with the given
// pattern such as "library/*", making any string check convenient.
$pattern = str_replace('\*', '.*', $pattern);
if (preg_match('#^'.$pattern.'\z#u', $value) === 1) {
return true;
}
}
return false;
}
/**
* Determine if a given string is 7 bit ASCII.
*
* @param string $value
* @return bool
*/
public static function isAscii($value)
{
return ASCII::is_ascii((string) $value);
}
/**
* Determine if a given string is valid JSON.
*
* @param string $value
* @return bool
*/
public static function isJson($value)
{
if (! is_string($value)) {
return false;
}
try {
json_decode($value, true, 512, JSON_THROW_ON_ERROR);
} catch (JsonException) {
return false;
}
return true;
}
/**
* Determine if a given string is a valid UUID.
*
* @param string $value
* @return bool
*/
public static function isUuid($value)
{
if (! is_string($value)) {
return false;
}
return preg_match('/^[\da-f]{8}-[\da-f]{4}-[\da-f]{4}-[\da-f]{4}-[\da-f]{12}$/iD', $value) > 0;
}
/**
* Determine if a given string is a valid ULID.
*
* @param string $value
* @return bool
*/
public static function isUlid($value)
{
if (! is_string($value)) {
return false;
}
return Ulid::isValid($value);
}
/**
* Convert a string to kebab case.
*
* @param string $value
* @return string
*/
public static function kebab($value)
{
return static::snake($value, '-');
}
/**
* Return the length of the given string.
*
* @param string $value
* @param string|null $encoding
* @return int
*/
public static function length($value, $encoding = null)
{
return mb_strlen($value, $encoding);
}
/**
* Limit the number of characters in a string.
*
* @param string $value
* @param int $limit
* @param string $end
* @return string
*/
public static function limit($value, $limit = 100, $end = '...')
{
if (mb_strwidth($value, 'UTF-8') <= $limit) {
return $value;
}
return rtrim(mb_strimwidth($value, 0, $limit, '', 'UTF-8')).$end;
}
/**
* Convert the given string to lower-case.
*
* @param string $value
* @return string
*/
public static function lower($value)
{
return mb_strtolower($value, 'UTF-8');
}
/**
* Limit the number of words in a string.
*
* @param string $value
* @param int $words
* @param string $end
* @return string
*/
public static function words($value, $words = 100, $end = '...')
{
preg_match('/^\s*+(?:\S++\s*+){1,'.$words.'}/u', $value, $matches);
if (! isset($matches[0]) || static::length($value) === static::length($matches[0])) {
return $value;
}
return rtrim($matches[0]).$end;
}
/**
* Converts GitHub flavored Markdown into HTML.
*
* @param string $string
* @param array $options
* @return string
*/
public static function markdown($string, array $options = [])
{
$converter = new GithubFlavoredMarkdownConverter($options);
return (string) $converter->convert($string);
}
/**
* Converts inline Markdown into HTML.
*
* @param string $string
* @param array $options
* @return string
*/
public static function inlineMarkdown($string, array $options = [])
{
$environment = new Environment($options);
$environment->addExtension(new GithubFlavoredMarkdownExtension());
$environment->addExtension(new InlinesOnlyExtension());
$converter = new MarkdownConverter($environment);
return (string) $converter->convert($string);
}
/**
* Masks a portion of a string with a repeated character.
*
* @param string $string
* @param string $character
* @param int $index
* @param int|null $length
* @param string $encoding
* @return string
*/
public static function mask($string, $character, $index, $length = null, $encoding = 'UTF-8')
{
if ($character === '') {
return $string;
}
$segment = mb_substr($string, $index, $length, $encoding);
if ($segment === '') {
return $string;
}
$strlen = mb_strlen($string, $encoding);
$startIndex = $index;
if ($index < 0) {
$startIndex = $index < -$strlen ? 0 : $strlen + $index;
}
$start = mb_substr($string, 0, $startIndex, $encoding);
$segmentLen = mb_strlen($segment, $encoding);
$end = mb_substr($string, $startIndex + $segmentLen);
return $start.str_repeat(mb_substr($character, 0, 1, $encoding), $segmentLen).$end;
}
/**
* Get the string matching the given pattern.
*
* @param string $pattern
* @param string $subject
* @return string
*/
public static function match($pattern, $subject)
{
preg_match($pattern, $subject, $matches);
if (! $matches) {
return '';
}
return $matches[1] ?? $matches[0];
}
/**
* Determine if a given string matches a given pattern.
*
* @param string|iterable<string> $pattern
* @param string $value
* @return bool
*/
public static function isMatch($pattern, $value)
{
$value = (string) $value;
if (! is_iterable($pattern)) {
$pattern = [$pattern];
}
foreach ($pattern as $pattern) {
$pattern = (string) $pattern;
if (preg_match($pattern, $value) === 1) {
return true;
}
}
return false;
}
/**
* Get the string matching the given pattern.
*
* @param string $pattern
* @param string $subject
* @return \Illuminate\Support\Collection
*/
public static function matchAll($pattern, $subject)
{
preg_match_all($pattern, $subject, $matches);
if (empty($matches[0])) {
return collect();
}
return collect($matches[1] ?? $matches[0]);
}
/**
* Pad both sides of a string with another.
*
* @param string $value
* @param int $length
* @param string $pad
* @return string
*/
public static function padBoth($value, $length, $pad = ' ')
{
$short = max(0, $length - mb_strlen($value));
$shortLeft = floor($short / 2);
$shortRight = ceil($short / 2);
return mb_substr(str_repeat($pad, $shortLeft), 0, $shortLeft).
$value.
mb_substr(str_repeat($pad, $shortRight), 0, $shortRight);
}
/**
* Pad the left side of a string with another.
*
* @param string $value
* @param int $length
* @param string $pad
* @return string
*/
public static function padLeft($value, $length, $pad = ' ')
{
$short = max(0, $length - mb_strlen($value));
return mb_substr(str_repeat($pad, $short), 0, $short).$value;
}
/**
* Pad the right side of a string with another.
*
* @param string $value
* @param int $length
* @param string $pad
* @return string
*/
public static function padRight($value, $length, $pad = ' ')
{
$short = max(0, $length - mb_strlen($value));
return $value.mb_substr(str_repeat($pad, $short), 0, $short);
}
/**
* Parse a Class[@]method style callback into class and method.
*
* @param string $callback
* @param string|null $default
* @return array<int, string|null>
*/
public static function parseCallback($callback, $default = null)
{
return static::contains($callback, '@') ? explode('@', $callback, 2) : [$callback, $default];
}
/**
* Get the plural form of an English word.
*
* @param string $value
* @param int|array|\Countable $count
* @return string
*/
public static function plural($value, $count = 2)
{
return Pluralizer::plural($value, $count);
}
/**
* Pluralize the last word of an English, studly caps case string.
*
* @param string $value
* @param int|array|\Countable $count
* @return string
*/
public static function pluralStudly($value, $count = 2)
{
$parts = preg_split('/(.)(?=[A-Z])/u', $value, -1, PREG_SPLIT_DELIM_CAPTURE);
$lastWord = array_pop($parts);
return implode('', $parts).self::plural($lastWord, $count);
}
/**
* Generate a random, secure password.
*
* @param int $length
* @param bool $letters
* @param bool $numbers
* @param bool $symbols
* @param bool $spaces
* @return string
*/
public static function password($length = 32, $letters = true, $numbers = true, $symbols = true, $spaces = false)
{
return (new Collection)
->when($letters, fn ($c) => $c->merge([
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
]))
->when($numbers, fn ($c) => $c->merge([
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
]))
->when($symbols, fn ($c) => $c->merge([
'~', '!', '#', '$', '%', '^', '&', '*', '(', ')', '-',
'_', '.', ',', '<', '>', '?', '/', '\\', '{', '}', '[',
']', '|', ':', ';',
]))
->when($spaces, fn ($c) => $c->merge([' ']))
->pipe(fn ($c) => Collection::times($length, fn () => $c[random_int(0, $c->count() - 1)]))
->implode('');
}
/**
* Generate a more truly "random" alpha-numeric string.
*
* @param int $length
* @return string
*/
public static function random($length = 16)
{
return (static::$randomStringFactory ?? function ($length) {
$string = '';
while (($len = strlen($string)) < $length) {
$size = $length - $len;
$bytesSize = (int) ceil(($size) / 3) * 3;
$bytes = random_bytes($bytesSize);
$string .= substr(str_replace(['/', '+', '='], '', base64_encode($bytes)), 0, $size);
}
return $string;
})($length);
}
/**
* Set the callable that will be used to generate random strings.
*
* @param callable|null $factory
* @return void
*/
public static function createRandomStringsUsing(callable $factory = null)
{
static::$randomStringFactory = $factory;
}
/**
* Set the sequence that will be used to generate random strings.
*
* @param array $sequence
* @param callable|null $whenMissing
* @return void
*/
public static function createRandomStringsUsingSequence(array $sequence, $whenMissing = null)
{
$next = 0;
$whenMissing ??= function ($length) use (&$next) {
$factoryCache = static::$randomStringFactory;
static::$randomStringFactory = null;
$randomString = static::random($length);
static::$randomStringFactory = $factoryCache;
$next++;
return $randomString;
};
static::createRandomStringsUsing(function ($length) use (&$next, $sequence, $whenMissing) {
if (array_key_exists($next, $sequence)) {
return $sequence[$next++];
}
return $whenMissing($length);
});
}
/**
* Indicate that random strings should be created normally and not using a custom factory.
*
* @return void
*/
public static function createRandomStringsNormally()
{
static::$randomStringFactory = null;
}
/**
* Repeat the given string.
*
* @param string $string
* @param int $times
* @return string
*/
public static function repeat(string $string, int $times)
{
return str_repeat($string, $times);
}
/**
* Replace a given value in the string sequentially with an array.
*
* @param string $search
* @param iterable<string> $replace
* @param string $subject
* @return string
*/
public static function replaceArray($search, $replace, $subject)
{
if ($replace instanceof Traversable) {
$replace = collect($replace)->all();
}
$segments = explode($search, $subject);
$result = array_shift($segments);
foreach ($segments as $segment) {
$result .= (array_shift($replace) ?? $search).$segment;
}
return $result;
}
/**
* Replace the given value in the given string.
*
* @param string|iterable<string> $search
* @param string|iterable<string> $replace
* @param string|iterable<string> $subject
* @return string
*/
public static function replace($search, $replace, $subject)
{
if ($search instanceof Traversable) {
$search = collect($search)->all();
}
if ($replace instanceof Traversable) {
$replace = collect($replace)->all();
}
if ($subject instanceof Traversable) {
$subject = collect($subject)->all();
}
return str_replace($search, $replace, $subject);
}
/**
* Replace the first occurrence of a given value in the string.
*
* @param string $search
* @param string $replace
* @param string $subject
* @return string
*/
public static function replaceFirst($search, $replace, $subject)
{
$search = (string) $search;
if ($search === '') {
return $subject;
}
$position = strpos($subject, $search);
if ($position !== false) {
return substr_replace($subject, $replace, $position, strlen($search));
}
return $subject;
}
/**
* Replace the last occurrence of a given value in the string.
*
* @param string $search
* @param string $replace
* @param string $subject
* @return string
*/
public static function replaceLast($search, $replace, $subject)
{
if ($search === '') {
return $subject;
}
$position = strrpos($subject, $search);
if ($position !== false) {
return substr_replace($subject, $replace, $position, strlen($search));
}
return $subject;
}
/**
* Remove any occurrence of the given string in the subject.
*
* @param string|iterable<string> $search
* @param string $subject
* @param bool $caseSensitive
* @return string
*/
public static function remove($search, $subject, $caseSensitive = true)
{
if ($search instanceof Traversable) {
$search = collect($search)->all();
}
$subject = $caseSensitive
? str_replace($search, '', $subject)
: str_ireplace($search, '', $subject);
return $subject;
}
/**
* Reverse the given string.
*
* @param string $value
* @return string
*/
public static function reverse(string $value)
{
return implode(array_reverse(mb_str_split($value)));
}
/**
* Begin a string with a single instance of a given value.
*
* @param string $value
* @param string $prefix
* @return string
*/
public static function start($value, $prefix)
{
$quoted = preg_quote($prefix, '/');
return $prefix.preg_replace('/^(?:'.$quoted.')+/u', '', $value);
}
/**
* Convert the given string to upper-case.
*
* @param string $value
* @return string
*/
public static function upper($value)
{
return mb_strtoupper($value, 'UTF-8');
}
/**
* Convert the given string to title case.
*
* @param string $value
* @return string
*/
public static function title($value)
{
return mb_convert_case($value, MB_CASE_TITLE, 'UTF-8');
}
/**
* Convert the given string to title case for each word.
*
* @param string $value
* @return string
*/
public static function headline($value)
{
$parts = explode(' ', $value);
$parts = count($parts) > 1
? array_map([static::class, 'title'], $parts)
: array_map([static::class, 'title'], static::ucsplit(implode('_', $parts)));
$collapsed = static::replace(['-', '_', ' '], '_', implode('_', $parts));
return implode(' ', array_filter(explode('_', $collapsed)));
}
/**
* Get the singular form of an English word.
*
* @param string $value
* @return string
*/
public static function singular($value)
{
return Pluralizer::singular($value);
}
/**
* Generate a URL friendly "slug" from a given string.
*
* @param string $title
* @param string $separator
* @param string|null $language
* @param array<string, string> $dictionary
* @return string
*/
public static function slug($title, $separator = '-', $language = 'en', $dictionary = ['@' => 'at'])
{
$title = $language ? static::ascii($title, $language) : $title;
// Convert all dashes/underscores into separator
$flip = $separator === '-' ? '_' : '-';
$title = preg_replace('!['.preg_quote($flip).']+!u', $separator, $title);
// Replace dictionary words
foreach ($dictionary as $key => $value) {
$dictionary[$key] = $separator.$value.$separator;
}
$title = str_replace(array_keys($dictionary), array_values($dictionary), $title);
// Remove all characters that are not the separator, letters, numbers, or whitespace
$title = preg_replace('![^'.preg_quote($separator).'\pL\pN\s]+!u', '', static::lower($title));
// Replace all separator characters and whitespace by a single separator
$title = preg_replace('!['.preg_quote($separator).'\s]+!u', $separator, $title);
return trim($title, $separator);
}
/**
* Convert a string to snake case.
*
* @param string $value
* @param string $delimiter
* @return string
*/
public static function snake($value, $delimiter = '_')
{
$key = $value;
if (isset(static::$snakeCache[$key][$delimiter])) {
return static::$snakeCache[$key][$delimiter];
}
if (! ctype_lower($value)) {
$value = preg_replace('/\s+/u', '', ucwords($value));
$value = static::lower(preg_replace('/(.)(?=[A-Z])/u', '$1'.$delimiter, $value));
}
return static::$snakeCache[$key][$delimiter] = $value;
}
/**
* Remove all "extra" blank space from the given string.
*
* @param string $value
* @return string
*/
public static function squish($value)
{
return preg_replace('~(\s|\x{3164})+~u', ' ', preg_replace('~^[\s\x{FEFF}]+|[\s\x{FEFF}]+$~u', '', $value));
}
/**
* Determine if a given string starts with a given substring.
*
* @param string $haystack
* @param string|iterable<string> $needles
* @return bool
*/
public static function startsWith($haystack, $needles)
{
if (! is_iterable($needles)) {
$needles = [$needles];
}
foreach ($needles as $needle) {
if ((string) $needle !== '' && str_starts_with($haystack, $needle)) {
return true;
}
}
return false;
}
/**
* Convert a value to studly caps case.
*
* @param string $value
* @return string
*/
public static function studly($value)
{
$key = $value;
if (isset(static::$studlyCache[$key])) {
return static::$studlyCache[$key];
}
$words = explode(' ', static::replace(['-', '_'], ' ', $value));
$studlyWords = array_map(fn ($word) => static::ucfirst($word), $words);
return static::$studlyCache[$key] = implode($studlyWords);
}
/**
* Returns the portion of the string specified by the start and length parameters.
*
* @param string $string
* @param int $start
* @param int|null $length
* @param string $encoding
* @return string
*/
public static function substr($string, $start, $length = null, $encoding = 'UTF-8')
{
return mb_substr($string, $start, $length, $encoding);
}
/**
* Returns the number of substring occurrences.
*
* @param string $haystack
* @param string $needle
* @param int $offset
* @param int|null $length
* @return int
*/
public static function substrCount($haystack, $needle, $offset = 0, $length = null)
{
if (! is_null($length)) {
return substr_count($haystack, $needle, $offset, $length);
}
return substr_count($haystack, $needle, $offset);
}
/**
* Replace text within a portion of a string.
*
* @param string|string[] $string
* @param string|string[] $replace
* @param int|int[] $offset
* @param int|int[]|null $length
* @return string|string[]
*/
public static function substrReplace($string, $replace, $offset = 0, $length = null)
{
if ($length === null) {
$length = strlen($string);
}
return substr_replace($string, $replace, $offset, $length);
}
/**
* Swap multiple keywords in a string with other keywords.
*
* @param array $map
* @param string $subject
* @return string
*/
public static function swap(array $map, $subject)
{
return strtr($subject, $map);
}
/**
* Make a string's first character lowercase.
*
* @param string $string
* @return string
*/
public static function lcfirst($string)
{
return static::lower(static::substr($string, 0, 1)).static::substr($string, 1);
}
/**
* Make a string's first character uppercase.
*
* @param string $string
* @return string
*/
public static function ucfirst($string)
{
return static::upper(static::substr($string, 0, 1)).static::substr($string, 1);
}
/**
* Split a string into pieces by uppercase characters.
*
* @param string $string
* @return string[]
*/
public static function ucsplit($string)
{
return preg_split('/(?=\p{Lu})/u', $string, -1, PREG_SPLIT_NO_EMPTY);
}
/**
* Get the number of words a string contains.
*
* @param string $string
* @param string|null $characters
* @return int
*/
public static function wordCount($string, $characters = null)
{
return str_word_count($string, 0, $characters);
}
/**
* Generate a UUID (version 4).
*
* @return \Ramsey\Uuid\UuidInterface
*/
public static function uuid()
{
return static::$uuidFactory
? call_user_func(static::$uuidFactory)
: Uuid::uuid4();
}
/**
* Generate a time-ordered UUID (version 4).
*
* @return \Ramsey\Uuid\UuidInterface
*/
public static function orderedUuid()
{
if (static::$uuidFactory) {
return call_user_func(static::$uuidFactory);
}
$factory = new UuidFactory;
$factory->setRandomGenerator(new CombGenerator(
$factory->getRandomGenerator(),
$factory->getNumberConverter()
));
$factory->setCodec(new TimestampFirstCombCodec(
$factory->getUuidBuilder()
));
return $factory->uuid4();
}
/**
* Set the callable that will be used to generate UUIDs.
*
* @param callable|null $factory
* @return void
*/
public static function createUuidsUsing(callable $factory = null)
{
static::$uuidFactory = $factory;
}
/**
* Set the sequence that will be used to generate UUIDs.
*
* @param array $sequence
* @param callable|null $whenMissing
* @return void
*/
public static function createUuidsUsingSequence(array $sequence, $whenMissing = null)
{
$next = 0;
$whenMissing ??= function () use (&$next) {
$factoryCache = static::$uuidFactory;
static::$uuidFactory = null;
$uuid = static::uuid();
static::$uuidFactory = $factoryCache;
$next++;
return $uuid;
};
static::createUuidsUsing(function () use (&$next, $sequence, $whenMissing) {
if (array_key_exists($next, $sequence)) {
return $sequence[$next++];
}
return $whenMissing();
});
}
/**
* Always return the same UUID when generating new UUIDs.
*
* @param \Closure|null $callback
* @return \Ramsey\Uuid\UuidInterface
*/
public static function freezeUuids(Closure $callback = null)
{
$uuid = Str::uuid();
Str::createUuidsUsing(fn () => $uuid);
if ($callback !== null) {
try {
$callback($uuid);
} finally {
Str::createUuidsNormally();
}
}
return $uuid;
}
/**
* Indicate that UUIDs should be created normally and not using a custom factory.
*
* @return void
*/
public static function createUuidsNormally()
{
static::$uuidFactory = null;
}
/**
* Generate a ULID.
*
* @param \DateTimeInterface|null $time
* @return \Symfony\Component\Uid\Ulid
*/
public static function ulid($time = null)
{
if ($time === null) {
return new Ulid();
}
return new Ulid(Ulid::generate($time));
}
/**
* Remove all strings from the casing caches.
*
* @return void
*/
public static function flushCache()
{
static::$snakeCache = [];
static::$camelCache = [];
static::$studlyCache = [];
}
}