PHP funkce print_r()
Dostupnost ve verzích: PHP 4.0
Prints human-readable information about a variable
Parametry
| Parametr | Datový typ | Výchozí hodnota | Poznámka |
|---|---|---|---|
$expression |
mixed |
není | 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). |
Návratové hodnoty
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.