What does it mean when var_dump outputs NULL in PHP?

When `var_dump` outputs `NULL` in PHP, it means that the variable being dumped has a value of `NULL`, which indicates that it has no value assigned to it. To solve this issue, you can check if the variable is `NULL` before using it to avoid any errors in your code. 

// Check if the variable is NULL before using it
if ($variable !== NULL) {
    var_dump($variable);
} else {
    echo "Variable is NULL";
}

Keywords

var_dump NULL PHP data type debugging

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