Tag: alphanumeric

PHP: How to Generate a Random String Containing Both Letters and Numbers

May 11, 2012

by Craig Lotter

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To generate a string containing a random selection of both letters and numbers (i.e. an alphanumeric string) using PHP is pretty trivial. Essentially what we...

CodeUnit

PHP: Strip Non-Alphanumeric Characters out of a String

November 26, 2010

by Craig Lotter

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Sometimes it comes in quite handy to strip out all the non-alphanumeric characters from a given string. Of course, we could just use a bog...

CodeUnit

PHP: How to Get all the Numbers out of an Alphanumeric String?

May 7, 2010

by Craig Lotter

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Given a registration code, or something important like that, which often contains information encoded in the alphanumeric string itself, it is sometimes quite useful to...

CodeUnit

PHP: How to Get all the Letters out of an Alphanumeric String?

April 21, 2010

by Craig Lotter

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Given a registration code, or something important like that, which often contains information encoded in the alphanumeric string itself, it is sometimes quite useful to...