View Full Version : preg_match extract date from string

11-07-2010, 06:37 PM
I need to figure out how to extract a date out of a string. Sometimes it is at the beginning, sometimes it is in the middle with a space on each side. I have my preg_match pulling out the year, but only at the beginning of the string.

preg_match('/^\d{4} /',$title,$matches);

If they put anything before the year it doesn't see the year. I can't quite figure out how to pull the year if it isn't at the beginning of the string. Any help would be great.

Thank you.

11-07-2010, 06:48 PM
'/^\d{4} /' means search for 4 digits followed by a space at the beginning of the string. Drop the ^ to have it search for 4 consecutive digits followed by a space anywhere.

11-07-2010, 06:53 PM
Thank you that worked. What is the difference between /\d{4} / and /[0-9]{4} /

I get the same result with both.

11-07-2010, 06:54 PM
There's no difference. \d means digit, and [0-9] means the digits 0 through 9, which is all of um :)

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