php中递增或递减运算符前置与后置的区别是什么？

Question

数据分析师 · Answer

What is the difference between prefix and postfix of increment or decrement operator in php? -PHP Chinese website Q&A-What is the difference between increment or decrement operator in PHP? -PHP Chinese website Q&A

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迷茫 · Answer

递增或递减运算符有两种使用方法，一种是先将变量增加或者减少1，再将值赋给原变量，称为前置递增或递减运算符；另一种是将运算符放在变量后面，即先返回变量的当前值，然后变量的当前值增加或者减少1，称为后置递增或递减运算符

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