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Zend PHP 5 Certification Study Guide by Ben Ramsey, Davey Shafik

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Strings and Patterns

As we mentioned in the PHP Basics chapter, strings wear many hats in PHP—far from being relegated to mere collections of textual characters, they can be used to store binary data of any kind, as well as text encoded in a way that PHP does not understand natively, but that one of its extensions can manipulate directly.

String manipulation is a very important skill for every PHP developer—a fact that is reflected in the number of exam questions that either revolve directly around strings or that require a firm grasp on the way they work. Therefore, you should ensure that you are very familiar with them before taking the exam.

Keep in mind, however, that strings are a vast topic; once again, we focus on the PHP features that ...

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