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var_dump

(PHP 3>= 3.0.5, PHP 4 >= 4.0.0)

var_dump -- Dumps information about a variable

Description

void var_dump ( mixed expression [, mixed expression [, ...]])

This function returns structured information about one or more expressions that includes its type and value. Arrays are explored recursively with values indented to show structure.

Tip: As with anything that outputs its result directly to the browser, you can use the output-control functions to capture the output of this function, and save it - for example - in a string.

Compare var_dump() to print_r().

<pre>
<?php
$a = array (1, 2, array ("a", "b", "c"));
var_dump ($a);
/* output:
array(3) {
 [0]=>
 int(1)
 [1]=>
 int(2)
 [2]=>
 array(3) {
 [0]=>
 string(1) "a"
 [1]=>
 string(1) "b"
 [2]=>
 string(1) "c"
 }
}
*/
$b = 3.1; $c = TRUE;
var_dump($b,$c);
/* output:
float(3.1)
bool(true)
*/
?>;
</pre>


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