What potential issues can arise when trying to execute PHP code within PHP code, as seen in the provided example?

When trying to execute PHP code within PHP code, potential issues can arise due to parsing conflicts or unexpected behavior. To solve this, you can use PHP's `eval()` function to dynamically evaluate the code within a string. 

// Example of executing PHP code within PHP code using eval()
$code = '<?php echo "Hello, World!"; ?>';
eval("?>$code<?php ");

Keywords

nested PHP code syntax error eval function code injection security vulnerability

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