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Preg_match ()

Function prototype: int preg_match (string $pattern, string $content [, array $matches])

The preg_match () function searches the $content string for something that matches the regular expression given by $pattern. If $matches is provided, the matching result is put into it. $matches [0] will contain text that matches the entire pattern, $matches [1] will contain the first captured content that matches the pattern unit in parentheses, and so on. The function matches only once and finally returns the number of matches of 0 or 1. Code 6. 1 shows a code example of the preg_match () function.

Code 6.1 date-time match

The code is as follows:

This is a simple example of dynamic text string matching. Assuming that the current system time is 13:25 on August 17th, 2006, the following will be output.

The matching time is: 2006-08-17 01:25 pm

Current date: 2006-08-17

The current time is: 01:25 pm

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