What is causing the "Call to undefined function" error in the PHP code?

The "Call to undefined function" error in PHP occurs when the code tries to call a function that has not been defined or loaded. To solve this issue, make sure that the function is defined or included in the code before it is called. Check for typos in the function name and ensure that the file containing the function is properly included. 

// Ensure that the function is defined before calling it
function myFunction() {
    // Function implementation
}

// Call the function after it has been defined
myFunction();

Keywords

PHP Call to undefined function Error Function Code

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