query: How to check a reference number uses a certain sequence of letters and number using PHP
positive_passages.docid: 1388
positive_passages.text: Learning Regular Expressions
negative_passages.docid: 33065
negative_passages.text: Java equivalent to PHP's preg_replace_callback
negative_passages.docid: 7250
negative_passages.text: Reference - What does this error mean in PHP?
negative_passages.docid: 42559
negative_passages.text: (Built-in) way in JavaScript to check if a string is a valid number
negative_passages.docid: 13622
negative_passages.text: How to validate form in php
negative_passages.docid: 13458
negative_passages.text: How can I sanitize user input with PHP?
negative_passages.docid: 7951
negative_passages.text: PHP IF OR Else statement - best way to do this
negative_passages.docid: 58312
negative_passages.text: Why does (0 == 'Hello') return true in PHP?
negative_passages.docid: 108749
negative_passages.text: How do I tell if a variable has a numeric value in Perl?
negative_passages.docid: 69698
negative_passages.text: Number reference headline
negative_passages.docid: 149339
negative_passages.text: How do I convert numeric month number to name of month using PHP
negative_passages.docid: 120682
negative_passages.text: How do I verify that a string only contains letters, numbers, underscores and dashes?
negative_passages.docid: 72265
negative_passages.text: How do I use PHP to get the current year?
negative_passages.docid: 297
negative_passages.text: Search for a string or part of string in PHP
negative_passages.docid: 153616
negative_passages.text: Efficient way to look up value based on a key in php
negative_passages.docid: 34357
negative_passages.text: PHP: How do you determine every Nth iteration of a loop?
negative_passages.docid: 108227
negative_passages.text: Why php iteration by reference returns a duplicate last record?