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java软件工程师学php - 2. 非布尔类型可强行用作布尔类型

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2016-06-13 10:50:10748browse

java程序员学php - 2. 非布尔类型可强行用作布尔类型
只要数据不是0,那它就可以当作true来用; 否则,就当作false来用。

if("abc") {
   echo "abc"; //will print "abc"
}

if(!"0"){
   echo "zero"; //will print "zero"
}

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