void print_r(mixed expression);This function displays information about the values of variables in a way that's readable by humans. If given a string, integer or double, the value itself will be printed. If given an array, values will be presented in a format that shows keys and elements. Similar notation is used for objects.
Compare print_r() to var_dump().
1
2 <?php
3 $a = array (1, 2, array ("a", "b", "c"));
4 print_r ($a);
5 ?>
6 |