var_export ()的疑问，什么是合法的PHP代码？
mixed var_export ( mixed $expression [, bool $return ] )
此函数返回关于传递给该函数的变量的结构信息，它和 var_dump() 类似，不同的是其返回的表示是合法的 PHP 代码。
疑问:什么是合法的PHP代码？我自己做测试各种类型变量，都能输出。
回复内容：
mixed var_export ( mixed $expression [, bool $return ] )
此函数返回关于传递给该函数的变量的结构信息，它和 var_dump() 类似，不同的是其返回的表示是合法的 PHP 代码。
疑问:什么是合法的PHP代码？我自己做测试各种类型变量，都能输出。
合法的代码也就是，你在编辑器里写的代码，看到的代码，第二个参数加true，然后echo 出来的结果，你也许就会明白。
合法就是符合语法. var_export的代码输出到文件可以被当做 php 代码执行. var_dump 不可以.
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