Which regexp php is using for filter_var($url, FILTER_VALIDATE_URL)?
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PHP regex for validating a URL
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Differences between Javascript regexp literal and constructor
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Validating URL in Java
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Is there a PHP function that can escape regex patterns before they are applied?
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How can I match multiple occurrences with a regex in JavaScript similar to PHP's preg_match_all()?
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Anything start with http:// is validated by FILTER_VALIDATE_URL?
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Escaping WP_Query tax_query when term has special character(s)
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What to do Regular expression pattern doesn't match anywhere in string?
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What is a good regular expression to match a URL?
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How to check if the URL contains a given string?
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Php - regular expression to check if the string has chinese chars
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php - clean URL
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PHP: How to use array_filter() to filter array keys?
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Regular expression for URL
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When does preg_match(): Unknown modifier error occur?
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nginx httpMapModule regex variables
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Ignore html tags in preg_replace