106 lines
3.4 KiB
PHP
106 lines
3.4 KiB
PHP
<?php
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namespace Box\Spout\Common\Helper;
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/**
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* Class StringHelper
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* This class provides helper functions to work with strings and multibyte strings.
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*
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* @codeCoverageIgnore
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*/
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class StringHelper
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{
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/** @var bool Whether the mbstring extension is loaded */
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protected $hasMbstringSupport;
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/** @var bool Whether the code is running with PHP7 or older versions */
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private $isRunningPhp7OrOlder;
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/** @var array Locale info, used for number formatting */
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private $localeInfo;
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/**
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*
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*/
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public function __construct()
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{
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$this->hasMbstringSupport = \extension_loaded('mbstring');
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$this->isRunningPhp7OrOlder = \version_compare(PHP_VERSION, '8.0.0') < 0;
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$this->localeInfo = \localeconv();
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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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* @see strlen
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* @see mb_strlen
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*
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* @param string $string
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* @return int
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*/
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public function getStringLength($string)
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{
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return $this->hasMbstringSupport ? \mb_strlen($string) : \strlen($string);
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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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* @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 $string Haystack
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* @return int Char/substring's first occurrence position within the string if found (starts at 0) or -1 if not found
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*/
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public function getCharFirstOccurrencePosition($char, $string)
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{
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$position = $this->hasMbstringSupport ? \mb_strpos($string, $char) : \strpos($string, $char);
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return ($position !== false) ? $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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* @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 $string Haystack
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* @return int Char/substring's last occurrence position within the string if found (starts at 0) or -1 if not found
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*/
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public function getCharLastOccurrencePosition($char, $string)
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{
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$position = $this->hasMbstringSupport ? \mb_strrpos($string, $char) : \strrpos($string, $char);
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return ($position !== false) ? $position : -1;
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}
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/**
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* Formats a numeric value (int or float) in a way that's compatible with the expected spreadsheet format.
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*
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* Formatting of float values is locale dependent in PHP < 8.
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* Thousands separators and decimal points vary from locale to locale (en_US: 12.34 vs pl_PL: 12,34).
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* However, float values must be formatted with no thousands separator and a "." as decimal point
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* to work properly. This method can be used to convert the value to the correct format before storing it.
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*
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* @see https://wiki.php.net/rfc/locale_independent_float_to_string for the changed behavior in PHP8.
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*
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* @param int|float $numericValue
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* @return int|float|string
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*/
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public function formatNumericValue($numericValue)
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{
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if ($this->isRunningPhp7OrOlder && is_float($numericValue)) {
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return str_replace(
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[$this->localeInfo['thousands_sep'], $this->localeInfo['decimal_point']],
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['', '.'],
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$numericValue
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);
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}
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return $numericValue;
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}
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}
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