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efrain |
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<?php
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declare(strict_types=1);
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namespace OpenSpout\Common\Helper;
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/**
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* @internal
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*/
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final class StringHelper
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{
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/** @var bool Whether the mbstring extension is loaded */
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private readonly bool $hasMbstringSupport;
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public function __construct(bool $hasMbstringSupport)
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{
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$this->hasMbstringSupport = $hasMbstringSupport;
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}
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public static function factory(): self
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{
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return new self(\function_exists('mb_strlen'));
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}
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/**
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* Returns the length of the given string.
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* It uses the multi-bytes function is available.
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*
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* @see strlen
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* @see mb_strlen
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*/
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public function getStringLength(string $string): int
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{
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return $this->hasMbstringSupport
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? mb_strlen($string)
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: \strlen($string); // @codeCoverageIgnore
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}
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/**
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* Returns the position of the first occurrence of the given character/substring within the given string.
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* It uses the multi-bytes function is available.
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*
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* @see strpos
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* @see mb_strpos
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*
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* @param string $char Needle
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* @param string $string Haystack
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*
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* @return int Char/substring's first occurrence position within the string if found (starts at 0) or -1 if not found
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*/
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public function getCharFirstOccurrencePosition(string $char, string $string): int
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{
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$position = $this->hasMbstringSupport
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? mb_strpos($string, $char)
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: strpos($string, $char); // @codeCoverageIgnore
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return (false !== $position) ? $position : -1;
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}
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/**
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* Returns the position of the last occurrence of the given character/substring within the given string.
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* It uses the multi-bytes function is available.
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*
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* @see strrpos
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* @see mb_strrpos
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*
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* @param string $char Needle
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* @param string $string Haystack
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*
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* @return int Char/substring's last occurrence position within the string if found (starts at 0) or -1 if not found
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*/
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public function getCharLastOccurrencePosition(string $char, string $string): int
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{
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$position = $this->hasMbstringSupport
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? mb_strrpos($string, $char)
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: strrpos($string, $char); // @codeCoverageIgnore
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return (false !== $position) ? $position : -1;
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}
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}
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