How can undefined function errors be avoided in PHP scripts?

To avoid undefined function errors in PHP scripts, ensure that the function is defined before calling it in the script. This can be done by including the file where the function is defined, or by checking if the function exists before calling it using the function_exists() function. 

// Check if the function exists before calling it
if (function_exists('myFunction')) {
    myFunction();
} else {
    echo 'Function does not exist';
}

Keywords

undefined function PHP scripts error avoid functions

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