How much is the performance of the new scalar type and return type declaration in PHP7 improved?
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How much is the performance of the new scalar type and return type declaration in PHP7 improved? How much is the performance of the new scalar type and return type declaration in PHP7 improved? Reply content: the performance is not improved. On the contrary, strict type checks are introduced, which will increase the runtime overhead under normal circumstances ..
This feature is not intended for performance consideration.
Of course, the type prompt will be helpful for type inference. in PHP 7.1, "JIT-like technology (type specifical opcode handler) has been added ), for example, if $ a is int and $ B is int, $ a + $ B can use ZEND_ADD_LONG handler to indirectly improve performance.
However, in general, the initial starting point of this feature is not for performance.
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