var_export() gets structured information about the given variable. It is similar to var_dump() with one exception: the returned representation is valid PHP code.
The variable you want to export.
If used and set to TRUE
, var_export() will return the variable representation instead of outputting it.
Returns the variable representation when the return
parameter is used and evaluates to TRUE
. Otherwise, this function will return NULL
.
Possibility to export classes and arrays containing classes using the __set_state() magic method.
When the return
parameter is used, this function uses internal output buffering so it cannot be used inside an ob_start() callback function.
1 2 3 4 | <?php $a = array (1, 2, array ( "a" , "b" , "c" )); var_export( $a ); ?> |
The above example will output:
array ( 0 => 1, 1 => 2, 2 => array ( 0 => 'a', 1 => 'b', 2 => 'c', ), )
1 2 3 4 5 6 7 | <?php $b = 3.1; $v = var_export( $b , true); echo $v ; ?> |
The above example will output:
3.1
1 2 3 4 5 6 | <?php class A { public $var ; } $a = new A; $a -> var = 5; var_export( $a ); ?> |
The above example will output:
A::__set_state(array( 'var' => 5, ))
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | <?php class A { public $var1 ; public $var2 ; public static function __set_state( $an_array ) { $obj = new A; $obj ->var1 = $an_array [ 'var1' ]; $obj ->var2 = $an_array [ 'var2' ]; return $obj ; } } $a = new A; $a ->var1 = 5; $a ->var2 = 'foo' ; eval ( '$b = ' . var_export( $a , true) . ';' ); // $b = A::__set_state(array( // 'var1' => 5, // 'var2' => 'foo', // )); var_dump( $b ); ?> |
The above example will output:
object(A)#2 (2) { ["var1"]=> int(5) ["var2"]=> string(3) "foo" }
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