60 lines
1.4 KiB
PHP
60 lines
1.4 KiB
PHP
<?php
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/**
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* This file is part of CodeIgniter 4 framework.
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*
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* (c) CodeIgniter Foundation <admin@codeigniter.com>
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*
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* For the full copyright and license information, please view
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* the LICENSE file that was distributed with this source code.
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*/
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// CodeIgniter XML Helpers
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if (! function_exists('xml_convert')) {
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/**
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* Convert Reserved XML characters to Entities
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*/
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function xml_convert(string $str, bool $protectAll = false): string
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{
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$temp = '__TEMP_AMPERSANDS__';
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// Replace entities to temporary markers so that
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// ampersands won't get messed up
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$str = preg_replace('/&#(\d+);/', $temp . '\\1;', $str);
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if ($protectAll === true) {
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$str = preg_replace('/&(\w+);/', $temp . '\\1;', $str);
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}
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$original = [
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'&',
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'<',
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'>',
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'"',
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"'",
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'-',
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];
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$replacement = [
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'&',
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'<',
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'>',
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'"',
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''',
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'-',
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];
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$str = str_replace($original, $replacement, $str);
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// Decode the temp markers back to entities
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$str = preg_replace('/' . $temp . '(\d+);/', '&#\\1;', $str);
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if ($protectAll === true) {
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return preg_replace('/' . $temp . '(\w+);/', '&\\1;', $str);
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}
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return $str;
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}
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}
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