Fastest way to convert string to integer in PHP

Posted by nickf on Stack Overflow See other posts from Stack Overflow or by nickf
Published on 2008-10-27T05:18:57Z Indexed on 2010/04/14 4:53 UTC
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php

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casting

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optimization

Using PHP, what's the fastest way to convert a string like this: "123" to an integer?

Why is that particular method the fastest? What happens if it gets unexpected input, such as "hello" or an array?

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