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PHP7变化介绍

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Release： 2016-06-23 13:32:22
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本文内容根据PHP发布时的 new files 而来，链接地址 : PHP 7 new

特性一览

  • Added ?? operator
  • Added operato
    新的操作符
php// PHP 7之前的写法：比较两个数的大小function order_func($a, $b) {    return ($a < $b) ? -1 : (($a > $b) ? 1 : 0);}// PHP新增的操作符 <=>,perfectfunction order_func($a, $b) {    return $a <=> $b;}
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  • Added \u{xxxxx} Unicode Codepoint Escape Syntax
    可以直接使用这种方式输出unicode字符
phpecho "\u{1F602}"; // outputs
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PHP7变化介绍
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