print_r Prints human-readable information about a variable boolprint_r mixedexpression print_r displays information about a variable in a way that's readable by humans. If given a string, integer or float, 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. Remember that print_r will move the array pointer to the end. Use reset to bring it back to beginning. &tip.ob-capture; 'apple', 'b' => 'banana', 'c' => array ('x','y','z')); print_r ($a); ?> ]]> Which will output: Array ( [a] => apple [b] => banana [c] => Array ( [0] => x [1] => y [2] => z ) ) ]]> Prior to PHP 4.0.4, print_r will continue forever if given an array or object that contains a direct or indirect reference to itself. An example is print_r($GLOBALS) because $GLOBALS is itself a global variable that contains a reference to itself. See also ob_start, var_dump, and var_export.