query: What regexp does PHP filter_var use internally for FILTER_VALIDATE_EMAIL?
positive_passages.docid: 25349
positive_passages.text: Does PHP's filter_var FILTER_VALIDATE_EMAIL actually work?
negative_passages.docid: 61907
negative_passages.text: Right way to escape backslash [ \ ] in PHP regex?
negative_passages.docid: 99390
negative_passages.text: Regexp that matches valid regexps
negative_passages.docid: 4589
negative_passages.text: PHP validation/regex for URL
negative_passages.docid: 96443
negative_passages.text: PHP regex for validating a URL
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negative_passages.text: PHP preg_match (.*) not matching past line breaks
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negative_passages.text: JavaScript Regex, where to use escape characters?
negative_passages.docid: 97125
negative_passages.text: When does preg_match(): Unknown modifier error occur?
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negative_passages.text: How to filter string for unwanted characters using regex?
negative_passages.docid: 154461
negative_passages.text: View filter(s) that are currently being applied to an email message
negative_passages.docid: 126123
negative_passages.text: Escaping WP_Query tax_query when term has special character(s)
negative_passages.docid: 26063
negative_passages.text: How to use a variable inside a regular expression?
negative_passages.docid: 30260
negative_passages.text: Is there a RegExp.escape function in JavaScript?
negative_passages.docid: 125564
negative_passages.text: PHP regex delimiter, what's the point?
negative_passages.docid: 88909
negative_passages.text: How do I make this preg_match case insensitive?
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negative_passages.text: How to apply a regex on a column fetched from DB
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negative_passages.text: Should I sanitize an email address before passing it to the is_email() function?