## To `mysql_close()` or Not? Is Explicit MySQL Link Closure Necessary in PHP?

MySQL Link Management: Is mysql_close() Essential?

The question of whether mysql_close() is necessary has been a long-standing topic of discussion among PHP developers.

Documentation Clarification

According to the official MySQL documentation, "Using mysql_close() isn't usually necessary, as non-persistent open links are automatically closed at the end of the script's execution."

Automatic Closure Triggers

This statement implies that there is a trigger within PHP that automatically closes MySQL links when the script execution ends. This is typically the case for non-persistent connections, which are the default type of connection established by mysql_connect().

Why Not Close Links?

Closing MySQL links manually with mysql_close() may seem like a good practice, but it is not strictly required. The automatic closure mechanism ensures that all active links are closed when the script finishes executing.

Advantages of Manual Closure

While manual closure is not essential, it can provide some benefits:

• Explicit Control: Calling mysql_close() explicitly provides clear control over link closure, ensuring it occurs even in abnormal script termination scenarios.
• Resource Management: Closing links explicitly can help prevent memory leaks and keep your PHP processes leaner.

Personal Recommendation

Although automatic closure is the norm, some developers prefer the peace of mind that comes with manually closing links. This ensures consistent resource management and eliminates any doubts about outstanding connections.

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