(PHP3 >= 3.0.5, PHP4 )
void var_dump (mixed expression)
void var_dump
This function returns structured information about an expression that includes its type and value. Arrays are explored recursively with values indented to show structure.
Compare var_dump() to print_r().
<pre> <?php $a = array (1, 2, array ("a", "b", "c")); var_dump ($a); ?> </pre>