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preg_grep

preg_grep -- Return array entries that match the pattern

Description

array preg_grep(string pattern, array input);

preg_grep() returns the array consisting of the elements of the input array that match the given pattern.

Example 1. preg_grep() example

preg_grep("/^(\d+)?\.\d+$/", $array); // find all floating point numbers in the array
      

Note: This function was added in PHP 4.0.

 

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