Wie kann man sicherstellen, dass der Wert einer Variablen und nicht der Variablenname übergeben wird?

When passing a variable to a function or method in PHP, you can ensure that the value of the variable is passed instead of the variable name by using the '&' symbol before the variable name. This creates a reference to the variable, allowing the function to access and modify its value directly. By passing the variable by reference, any changes made to the variable within the function will also affect the original variable outside of the function. 

// Pass variable by reference to ensure its value is passed
function modifyValue(&$var) {
    $var = "New value";
}

$originalVar = "Original value";
modifyValue($originalVar);

echo $originalVar; // Output: New value

Keywords

PHP variable passing value reference function parameters

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