mirror of
https://github.com/pierre42100/ComunicAPI
synced 2024-12-26 05:28:57 +00:00
64 lines
1.4 KiB
PHP
64 lines
1.4 KiB
PHP
<?php
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/**
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* URL analyzer
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*
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* Retreivee the source code of a webpage to extracts
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* its open graph tags
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*
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* @author Pierre HUBERT
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*/
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class URLAnalyzer {
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/**
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* Analyze a given URL to extract OpenGraph content
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*
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* @param string $url The URL to analyze
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* @param int $timeout The
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* @return array Open graph informations in case of success or
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* empty array in case of failure
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*/
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public static function analyze(string $url, int $timeout = 15) : array {
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//Initialize curl
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$ch = curl_init($url);
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//Set timeout
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
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//Get the response
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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//Perform the request
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$source = curl_exec($ch);
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if(!$source)
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return array();
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//Analyze response
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preg_match_all('#<meta (.*?)>#is', $source, $results, PREG_PATTERN_ORDER);
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//Process results
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$list = array();
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foreach($results[1] as $entry){
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//Remove spaces
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$entry = str_replace(array(" =", "= "), "=", $entry);
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//Check if the meta tag represent an interest
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if(preg_match("/property/", $entry) AND preg_match("/og:/", $entry)){
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//Search for property tag and content tag
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preg_match("#property=[\"\']og:(.*?)[\"\']#is", $entry, $matches1);
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preg_match("#content=[\"\'](.*?)[\"\']#is", $entry, $matches2);
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$name = isset($matches1[1]) ? $matches1[1] : 1;
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$value = isset($matches2[1]) ? $matches2[1] : "";
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$list[$name] = $value;
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}
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}
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return $list;
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}
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} |