Revision: 3178
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at June 13, 2007 02:32 by hdotnet
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/** Returns an array containing each of the sub-strings from text that are between openingMarker and closingMarker. The text from openingMarker and closingMarker are not included in the result. This function does not support nesting of markers. */ function returnSubstrings($text, $openingMarker, $closingMarker) { $openingMarkerLength = strlen($openingMarker); $closingMarkerLength = strlen($closingMarker); $result = array(); $position = 0; while (($position = strpos($text, $openingMarker, $position)) !== false) { $position += $openingMarkerLength; if (($closingMarkerPosition = strpos($text, $closingMarker, $position)) !== false) { $result[] = substr($text, $position, $closingMarkerPosition - $position); $position = $closingMarkerPosition + $closingMarkerLength; } } return $result; } $msg = "This is a string with a url in <a href="http://www.google.co.uk/search?q=php&num=100&hl=en&safe=off&start=200&sa=N">http://www.google.co.uk/search?q=php&num=100&hl=en&safe=off&start=200&sa=N</a>" $urls = returnSubstrings($msg,'">','</a>'); print_r($urls); // array ( // 0 => 'http://www.google.co.uk/search?q=php&num=100&hl=en&safe=off&start=200&sa=N' // ) //
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http://uk2.php.net/ereg
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good for parsing a message for urls so you can process them for character length when displayed on screen
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Extract urls between anchor tags using php
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php
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PHP