PHP 忒聊
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梒 25. Extension Possibilities
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Built-in Modules
Built-in modules are compiled directly into PHP and carried around with every PHP process; their functionality is instantly available to every script that's being run. Like external modules, built-in modules have advantages and disadvantages, as described in the following table:
Advantages
Disadvantages
No need to load the module specifically; the functionality is instantly available.
Changes to built-in modules require recompiling of PHP.
No external files clutter up the disk; everything resides in the PHP binary.
The PHP binary grows and consumes more memory.
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Extension Possibilities
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The Zend Engine