What is the difference between using print_r() and var_dump() for debugging PHP code?

When debugging PHP code, using print_r() will display the variable values in a human-readable format, making it easier to understand the data structure. On the other hand, var_dump() provides more detailed information about the variables, including data types and lengths, which can be helpful for more complex debugging scenarios. It is recommended to use print_r() for quick and simple debugging tasks, while var_dump() is better suited for more in-depth analysis of variables. 

// Using print_r() for debugging
$variable = [1, 2, 3];
print_r($variable);

// Using var_dump() for debugging
$variable = "Hello";
var_dump($variable);

Keywords

print_r var_dump debugging PHP code difference

Related Questions