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# FAQ |
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## Problem with finding |
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Q: Element not found in such case: `$html->find('div[style=padding: 0px 2px;] span[class=rf]');` |
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A: If there is blank in selectors, quote it! |
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$html->find('div[style="padding: 0px 2px;"] span[class=rf]'); |
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## Problem with hosting |
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Q: On my local server everything works fine, but when I put it on my esternal server it doesn't work. |
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A: The "file_get_dom" function is a wrapper of "file_get_contents" function, you must set "allow_url_fopen" as TRUE in "php.ini" to allow accessing files via HTTP or FTP. However, some hosting venders disabled PHP's "allow_url_fopen" flag for security issues... PHP provides excellent support for "curl" library to do the same job, Use curl to get the page, then call "str_get_dom" to create DOM object. |
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Example: |
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$curl = curl_init(); |
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curl_setopt($curl, CURLOPT_URL, 'http://????????'); |
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); |
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curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10); |
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$str = curl_exec($curl); |
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curl_close($curl); |
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$html= str_get_html($str); |
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... |
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## Behind a proxy |
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Q: My server is behind a Proxy and i can't use file_get_contents b/c it returns a unauthorized error. |
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A: Thanks for Shaggy to provide the solution: |
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// Define a context for HTTP. |
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$context = array |
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( |
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'http' => array |
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( |
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'proxy' => 'addresseproxy:portproxy', // This needs to be the server and the port of the NTLM Authentication Proxy Server. |
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'request_fulluri' => true, |
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), |
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); |
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$context = stream_context_create($context); |
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$html= file_get_html('http://www.php.net', false, $context); |
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... |
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## Memory leak |
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Q: This script is leaking memory seriously... After it finished running, it's not cleaning up dom object properly from memory.. |
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A: Due to php5 circular references memory leak, after creating DOM object, you must call $dom->clear() to free memory if call file_get_dom() more then once. |
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Example: |
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$html = file_get_html(...); |
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// do something... |
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$html->clear(); |
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unset($html); |
