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那些年,我们追过的PHP自加自减运算(1)

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Release: 2016-06-06 19:49:49
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------------------------------------------------------------------------------------------- PHP的运算符号不算多,但是不是每个你都清楚怎么用呢? 这里我们来聊聊PHP的运算符号的升级版: ++,--,呵呵。 ++ 即自增, -- 即自减。 实际运用: $a = 10;

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PHP的运算符号不算多,但是不是每个你都清楚怎么用呢?

这里我们来聊聊PHP的运算符号的升级版: ++,--,呵呵。

 

++  即自增,

--    即自减。

实际运用:

$a = 10; $a++ = ?  //先用再加,最后结果为11

$a = 10; ++$a = ?  //先加再用,最后结果为11

 

$a = 10;

$b = $a++ + ++$a;

echo $a;

echo $b;   //算一下吧,结果我回复解答

 

Link: http://www.cnblogs.com/farwish/p/3795614.html

@黑眼诗人 

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