PHP best way to search a string for values in an array?

Question

I have a string and an array, the array contains all kinds of parts of a string I want to find in the original string (this is for basically reading a error log and identifying what line there is a "Could not find", or "Error", etc.)

Is the foreach preg_match the best method?

Paige Ruten · Accepted Answer · 2009-09-22 23:49:56Z

2

The easiest and speediest way is using strpos(). If it returns FALSE it didn't find the substring, otherwise it did. Make sure you use === as it might return 0:

$found_substring = (strpos($text, $substring) !== FALSE);

For case-insensitivity, use stripos(). If you need more matching power, use preg_match().

answered Sep 22, 2009 at 23:49

Paige Ruten

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1 Comment

Steven Over a year ago

So the best method would be to loop through the array and do strpos for each array key?

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