How can PHP documentation and other external resources be utilized to troubleshoot and fix problems in a script that are not easily identified?

Issue: When encountering problems in a PHP script that are not easily identified, utilizing PHP documentation and other external resources can help identify the root cause and provide solutions to fix the issue. Example PHP code snippet utilizing PHP documentation to troubleshoot and fix a problem: 

// Issue: Undefined variable error
// Problem: Trying to access a variable that has not been defined
// Solution: Define the variable before accessing it

$var = 'Hello World'; // Define the variable

echo $var; // Output the variable

Keywords

PHP documentation external resources troubleshooting script error identification

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