What are common pitfalls when migrating PHP code from version 5.3 to 5.4?

One common pitfall when migrating PHP code from version 5.3 to 5.4 is the removal of the "safe_mode" directive. This directive was deprecated in PHP 5.3 and completely removed in PHP 5.4, so any code relying on it will need to be updated. To solve this issue, you can remove any references to "safe_mode" in your PHP code and utilize alternative methods for handling file permissions and security. 

// Before
ini_set('safe_mode', 'On');

// After
// Update code to use alternative methods for file permissions and security

Keywords

PHP 5.3 PHP 5.4 Deprecated functions Error reporting Compatibility issues

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