44 lines
1.2 KiB
PHP
44 lines
1.2 KiB
PHP
<?php
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/**
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* Normalises and removes any unknown characters from a string, making it safe
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* for use as a filename.
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* @param string $string The string to slugificate.
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* @param integer $maxlength The maximum desired length of the resultant string.
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* @return string The slugified string.
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*/
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function slugify($string, $maxlength = 50) {
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return substr(preg_replace([
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'/\s+/',
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'/[^a-z0-9\-_]/'
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], [
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'-',
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''
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],
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strtolower(trim($string))
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), 0, $maxlength);
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}
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/**
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* Escapes a string ready for inclusion in an XML document.
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* @param string $string The string to escape.
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* @return string The escaped string.
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*/
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function escape4xml($string) {
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return htmlspecialchars($string, ENT_QUOTES | ENT_XML1);
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}
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/**
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* Renders a SimpleXML element node to a pretty-printed XML document.
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* @param SimpleXmlElement $simplexml_node The SimpleXML node to render.
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* @return string The pretty-printed XML representation of the provided SimpleXML node.
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*/
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function simplexml_asxml_pretty($simplexml_node) {
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libxml_disable_entity_loader(false);
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$dom = new DomDocument;
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$dom->preserveWhiteSpace = false;
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$dom->formatOutput = true;
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$dom->loadXML($simplexml_node->asXML(), LIBXML_NONET);
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return $dom->saveXML();
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}
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