var_dump
(PHP 3>= 3.0.5, PHP 4 )
var_dump -- Dumps information about a variable
Description
void
var_dump ( mixed expression [, mixed expression [, ...]])
This function displays 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 in a
string (for example).
Compare var_dump() to
print_r().
Example 1. var_dump() example
<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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