How can call-time pass-by-reference errors be addressed when updating PHP scripts to be compatible with newer versions like PHP 5.4?

Call-time pass-by-reference errors can be addressed by removing the ampersand (&) symbol before the variable in the function call. This means that instead of passing the variable by reference when calling the function, you should assign the variable to a reference variable before calling the function. This change is necessary to make the PHP script compatible with newer versions like PHP 5.4. 

// Before PHP 5.4
function myFunction(&$var) {
    // Function implementation
}

$myVar = "Hello";
myFunction(&$myVar); // Call-time pass-by-reference error

// After PHP 5.4
function myFunction(&$var) {
    // Function implementation
}

$myVar = "Hello";
$refVar = &$myVar;
myFunction($refVar); // No error

Keywords

call-time pass-by-reference PHP 5.4 compatibility error handling script update

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