bytic / utility

src/Str.php

<?php

namespace Nip\Utility;

/**
 * Class Str
 * @package Nip\Utility
 */
class Str
{
    /**
     * 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 = [];

    /**
     * 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(string $subject, string $search): string
    {
        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));
    }


    /**
     * 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)
    {
        return $search === '' ? $subject : explode($search, $subject)[0];
    }

    /**
     * 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);
    }

    /**
     * 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));
    }

    /**
     * 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];
        }
        $value = ucwords(str_replace(['-', '_'], ' ', $value));
        return static::$studlyCache[$key] = str_replace(' ', '', $value);
    }

    /**
     * Determine if a given string ends with a given substring.
     *
     * @param string $haystack
     * @param string|array $needles
     * @return bool
     */
    public static function endsWith($haystack, $needles)
    {
        foreach ((array)$needles as $needle) {
            if (substr($haystack, -strlen($needle)) === (string)$needle) {
                return true;
            }
        }
        return false;
    }

    /**
     * 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;
    }

    /**
     * Determine if a given string matches a given pattern.
     *
     * @param string $pattern
     * @param string $value
     * @return bool
     */
    public static function is($pattern, $value)
    {
        if ($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);
        return (bool)preg_match('#^' . $pattern . '\z#u', $value);
    }

    /**
     * Convert a string to kebab case.
     *
     * @param string $value
     * @return string
     */
    public static function kebab($value)
    {
        return static::snake($value, '-');
    }

    /**
     * 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', '', $value);
            $value = static::lower(preg_replace('/(.)(?=[A-Z])/u', '$1' . $delimiter, $value));
        }
        return static::$snakeCache[$key][$delimiter] = $value;
    }

    /**
     * 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 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;
        }

        /** @noinspection PhpComposerExtensionStubsInspection */
        return rtrim(mb_strimwidth($value, 0, $limit, '', 'UTF-8')) . $end;
    }

    /**
     * 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;
    }

    /**
     * Return the length of the given string.
     *
     * @param string $value
     * @return int
     */
    public static function length($value)
    {
        return mb_strlen($value);
    }

    /**
     * Parse a Class(at)method style callback into class and method.
     *
     * @param string $callback
     * @param string|null $default
     * @return array
     */
    public static function parseCallback($callback, $default = null)
    {
        return static::contains($callback, '@') ? explode('@', $callback, 2) : [$callback, $default];
    }

    /**
     * Determine if a given string contains a given substring.
     *
     * @param string $haystack
     * @param string|array $needles
     * @return bool
     */
    public static function contains($haystack, $needles)
    {
        foreach ((array)$needles as $needle) {
            if ($needle != '' && mb_strpos($haystack, $needle) !== false) {
                return true;
            }
        }
        return false;
    }

    /**
     * Get the plural form of an English word.
     *
     * @param   string  $value
     * @param   int     $count
     *
     * @return string
     */
    public static function plural(string $value, $count = 2): string

The parameter $count is not used and could be removed.

    {
        if (function_exists('inflector')) {
            return inflector()->pluralize($value);
        }
        throw new \Exception("Plural fuction needs bytic/inflector");
    }

    /**
     * Generate a more truly "random" alpha-numeric string.
     *
     * @param int $length
     * @return string
     * @throws \Exception
     */
    public static function random($length = 16): string
    {
        $string = '';
        while (($len = strlen($string)) < $length) {
            $size   = $length - $len;
            $bytes  = random_bytes($size);
            $string .= substr(str_replace(['/', '+', '='], '', base64_encode($bytes)), 0, $size);
        }

        return $string;
    }

    /**
     * Replace a given value in the string sequentially with an array.
     *
     * @param string $search
     * @param array $replace
     * @param string $subject
     * @return string
     */
    public static function replaceArray($search, array $replace, $subject)
    {
        foreach ($replace as $value) {
            $subject = static::replaceFirst($search, $value, $subject);
        }
        return $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)
    {
        $position = strpos($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)
    {
        $position = strrpos($subject, $search);
        if ($position !== false) {
            return substr_replace($subject, $replace, $position, strlen($search));
        }
        return $subject;
    }

    /**
     * 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');
    }

    /**
     * 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 $separator
     * @return string
     */
    public static function slug($title, $separator = '-')
    {
        $title = static::ascii($title);
        // Convert all dashes/underscores into separator
        $flip = $separator == '-' ? '_' : '-';
        $title = preg_replace('![' . preg_quote($flip) . ']+!u', $separator, $title);
        // Remove all characters that are not the separator, letters, numbers, or whitespace.
        $title = preg_replace('![^' . preg_quote($separator) . '\pL\pN\s]+!u', '', mb_strtolower($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);
    }

    /**
     * Transliterate a UTF-8 value to ASCII.
     *
     * @param string $value
     * @return string
     */
    public static function ascii($value)
    {
        foreach (static::charsArray() as $key => $val) {
            $value = str_replace($val, $key, $value);
        }
        return preg_replace('/[^\x20-\x7E]/u', '', $value);
    }

    /**
     * Returns the replacements for the ascii method.
     *
     * Note: Adapted from Stringy\Stringy.
     *
     * @see https://github.com/danielstjules/Stringy/blob/2.3.1/LICENSE.txt
     *
     * @return array
     */
    protected static function charsArray()
    {
        static $charsArray;
        if (isset($charsArray)) {
            return $charsArray;
        }
        return $charsArray = require dirname(__DIR__) . '/data/charsArray.php';
    }

    /**
     * Determine if a given string starts with a given substring.
     *
     * @param string $haystack
     * @param string|array $needles
     * @return bool
     */
    public static function startsWith($haystack, $needles)
    {
        foreach ((array)$needles as $needle) {
            if ($needle != '' && substr($haystack, 0, strlen($needle)) === (string)$needle) {
                return true;
            }
        }
        return false;
    }

    /**
     * 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);
    }

    /**
     * Convert the given string to upper-case.
     *
     * @param string $value
     * @return string
     */
    public static function upper($value)
    {
        return mb_strtoupper($value, 'UTF-8');
    }

    /**
     * Returns the portion of string specified by the start and length parameters.
     *
     * @param string $string
     * @param int $start
     * @param int|null $length
     * @return string
     */
    public static function substr($string, $start, $length = null)
    {
        return mb_substr($string, $start, $length, 'UTF-8');
    }

    /**
     * @param $data
     * @param bool $strict
     * @return bool
     */
    public static function isSerialized($data, $strict = true)
    {
        // if it isn't a string, it isn't serialized.
        if (!is_string($data)) {
            return false;
        }
        $data = trim($data);
        if ('N;' == $data) {
            return true;
        }
        if (strlen($data) < 4) {
            return false;
        }
        if (':' !== $data[1]) {
            return false;
        }
        if ($strict) {
            $lastc = substr($data, -1);
            if (';' !== $lastc && '}' !== $lastc) {
                return false;
            }
        } else {
            $semicolon = strpos($data, ';');
            $brace = strpos($data, '}');
            // Either ; or } must exist.
            if (false === $semicolon && false === $brace) {
                return false;
            }
            // But neither must be in the first X characters.
            if (false !== $semicolon && $semicolon < 3) {
                return false;
            }
            if (false !== $brace && $brace < 4) {
                return false;
            }
        }
        $token = $data[0];
        switch ($token) {
            case 's':
                if ($strict) {
                    if ('"' !== substr($data, -2, 1)) {
                        return false;
                    }
                } elseif (false === strpos($data, '"')) {
                    return false;
                }
            // or else fall through
            // no break
            case 'a':
            case 'O':
                return (bool)preg_match("/^{$token}:[0-9]+:/s", $data);
            case 'b':
            case 'i':
            case 'd':
                $end = $strict ? '$' : '';
                return (bool)preg_match("/^{$token}:[0-9.E-]+;$end/", $data);
        }
        return false;
    }

    /**
     * @param $str
     * @param $first
     * @param $last
     * @return string
     */
    public static function mask($str, $first = 0, $last = 0)
    {
        $len = strlen($str);
        $toShow = $first + $last;
        return substr($str, 0, $len <= $toShow ? 0 : $first)
            . str_repeat("*", $len - ($len <= $toShow ? 0 : $toShow))
            . substr($str, $len - $last, $len <= $toShow ? 0 : $last);
    }

    /**
     * @param $name
     * @param string $separator
     * @return string
     */
    public static function initials($name, $separator = '.')
    {
        $name = str_replace(['-', '_'], ' ', $name);
        $split = explode(" ", $name);
        $initials = [];
        foreach ($split as $part) {
            $initials[] = ucfirst($part[0]);
        }

        return implode($separator, $initials) . $separator;
    }

    /**
     * @param string $string
     * @param bool $return
     * @param array $params
     * @return bool|mixed
     */
    public static function isJson(string $string, $return = false, ...$params)
    {
        $data = json_decode($string, ...$params);
        if (json_last_error() !== JSON_ERROR_NONE) {
            return false;
        }
        return $return ? $data : true;
    }

    /**
     * Determine if the given value is a standard date format.
     *
     * @param  string  $value
     * @return bool
     */
    public static function isStandardDateFormat($value)
    {
        return preg_match('/^(\d{4})-(\d{1,2})-(\d{1,2})$/', $value);
    }

    /**
     * @param $hex
     *
     * @return string
     */
    public static function fromHex($hex): string
    {
        $str = '';
        for ($i=0;$i<strlen($hex);$i+=2) {
            $str .= chr(hexdec(substr($hex, $i, 2)));
        }
        return $str;
    }
}