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Writing efficient PHP
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2. Writing efficient code

Eliminating redundant code page 8 of 15

When modifying existing code, be careful to remove any redundant code. For example, when I worked on code that several previous developers had modified, I found assignments to a variable that were always executed, but the resulting variable was never used. The problem is compounded if the variable is initialized by a call to a function, and the result is never used.

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