[PHP's Variable handling function] var_export

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var_export

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

var_export — Export or return a string representation of a variable

Description:

mixed var_export ( mixed $expression [, bool $return ] )

Returns structural information about the variables passed to this function, similar to var_dump(), except that the returned representation is legal PHP code.

Returns a representation of a variable by setting the second parameter of the function to TRUE.

<!-- 比较 var_export() 和 var_dump(). --><pre class="brush:php;toolbar:false"><?php$a = array (1, 2, array ("a", "b", "c"));
var_export ($a);// print_r ($a);// var_dump ($a);/* 输出：
array (
  0 => 1,
  1 => 2,
  2 => 
  array (
    0 => &#39;a&#39;,
    1 => &#39;b&#39;,
    2 => &#39;c&#39;,
  ),
)
*/$b = 3.1;$v = var_export($b, TRUE);echo $v;/* 输出：
3.1
*/?>

       

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