What debugging techniques can be employed to troubleshoot issues related to variable replacement in PHP?

When troubleshooting variable replacement issues in PHP, one effective technique is to use var_dump() or print_r() to inspect the values of the variables involved. This can help identify if the variables are being correctly assigned or if there are any unexpected values. Additionally, checking for syntax errors, ensuring proper variable scope, and verifying that the correct variable names are being used can also help resolve variable replacement problems. 

// Example code snippet to troubleshoot variable replacement in PHP
$variable1 = "Hello";
$variable2 = "World";

// Using var_dump() to inspect the values of the variables
var_dump($variable1);
var_dump($variable2);

// Ensure correct variable assignment and usage
echo $variable1 . " " . $variable2;

Keywords

Xdebug var_dump error_reporting ini_set debug_backtrace

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