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Editor to share with you how php closes the result set, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Php closes the result set by: 1, through "mysql_free_result ($b);" recycling the result set; 2, using "mysql_close ($con);" close the database connection.

This article operating environment: Windows7 system, PHP7.1 version, DELL G3 computer

How does php close the result set?

Use mysql_free_result ($b); recycle the result set

Use mysql_close ($con); close the database connection

The mysql_free_result () function frees up the result memory.

Returns true on success and false on failure.

Grammar

Mysql_free_result (data)

Parameter data is required. The result identifier to release. The result identifier is the result returned from mysql_query ().

The mysql_close () function closes non-persistent MySQL connections.

Grammar

Mysql_close (link_identifier)

Parameter link_identifier is required. Connection identifier of the MySQL. If not specified, the last connection opened by mysql_connect () is used by default. If the connection is not found, the function attempts to call mysql_connect () to establish the connection and use it. If an accident occurs and the connection is not found or cannot be established, the system issues an E_WARNING-level warning.

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