How can developers effectively debug and troubleshoot PHP scripts that are not producing the expected output or results?

To effectively debug and troubleshoot PHP scripts that are not producing the expected output, developers can use tools like var_dump() or print_r() to display the contents of variables, check for syntax errors, and use error reporting functions like error_reporting(E_ALL) to catch any errors. Additionally, developers can use debugging tools like Xdebug or IDEs with built-in debugging capabilities to step through the code and identify issues. 

<?php
// Enable error reporting to catch any errors
error_reporting(E_ALL);

// Use var_dump() or print_r() to display variable contents
$variable = "Hello World";
var_dump($variable);

// Check for syntax errors and fix them
// Make sure all variables are properly initialized and used
$number = 5;
echo $number * 2;
?>

Keywords

Xdebug error_reporting var_dump stack trace breakpoints

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