PHP function print_r()
Prints human-readable information about a variable
Availability in PHP 4.0
Prints human-readable information about a variable
Parameters
| Parameter | Data type | Default value | Note |
|---|---|---|---|
$expression |
mixed |
not | The expression to be printed. |
$return |
bool |
null | If you would like to capture the output of print_r, use the return parameter. If this parameter is set to true, print_r will return its output, instead of printing it (which it does by default). |
Return values
mixed
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.
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