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Home Backend Development PHP Tutorial 一句php的写法,在线帮下

一句php的写法,在线帮下

Jun 23, 2016 pm 01:31 PM

$start="2";
$jieshu="10";

$cmd = 'abc.exe -i 1.mp3 -b 360 -ar 24000 -ss  $start -t $jieshu 2.m4r';
//上面这句正确得如何写?我的start和jieshu执行读不到参数?正确得如何写才可以?
?>


回复讨论(解决方案)

$cmd = 'abc.exe -i 1.mp3 -b 360 -ar 24000 -ss  .$start -t .$jieshu 2.m4r';
我在前面加个符号.也不行。。。

$cmd = "abc.exe -i 1.mp3 -b 360 -ar 24000 -ss  .$start -t .$jieshu 2.m4r"; 换成双引号 不然里面不会最为变量解析的

问题都不描述清楚。你要做些什么?

单引号编译变量,双引号编译,也可以给变量外边加{}

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