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HomeBackend DevelopmentPHP TutorialSolution to PHP Fatal error: Call to undefined function mysqli_stmt_bind_param()

When using PHP to develop a website, database operations are very common. MySQLi is an extension commonly used in PHP to operate MySQL databases. It provides a relatively complete object-oriented interface, procedural interface, and supports operations of prepared statements. But sometimes when we use mysqli's prepared statements, we will encounter such an error:

PHP Fatal error: Call to undefined function mysqli_stmt_bind_param()

In this article, we will introduce Causes and solutions to this problem.

Cause

This error usually occurs when the MySQLi extension for PHP is not installed and configured correctly. Using prepared statements requires the MySQLi extension to have support for enabling prepared methods. This error will occur if the MySQLi extension is not installed or configured incorrectly.

Solution

The following is a way to solve this problem:

  1. Enable MySQLi extension

First make sure MySQLi is installed extension, you can check whether the MySQLi extension is enabled by executing the phpinfo() function. If the MySQLi extension is not enabled, you need to enable the extension in the php.ini file. Find the php.ini file and remove the semicolon ";" in front of the following code:

extension=mysqli

Or enable mysql and mysqli extensions at the same time:

extension= mysql
extension=mysqli

If the php.ini file is not found, you can view the location of the php.ini file by executing the phpinfo() function.

  1. Restart Apache

After modifying the php.ini file, you need to restart Apache for the modification to take effect.

  1. Check PHP version

Make sure the PHP version is greater than 5.3, because before PHP 5.3 version, the MySQLi extension does not support prepared statements.

  1. Use PDO instead of MySQLi

PDO is a lightweight PHP data access object. It is one of the core extensions of PHP 5 and supports a variety of databases, including MySQL. . Unlike the MySQLi extension, PDO provides a common database interface, making it easier to switch databases. If you cannot solve the MySQLi preprocessing problem, you can consider using PDO instead of MySQLi to achieve the same purpose.

Summary

When using PHP to operate a MySQL database, if the "PHP Fatal error: Call to undefined function mysqli_stmt_bind_param()" error occurs, then we need to check whether the configuration of the MySQLi extension is correct. And whether the PHP version is greater than 5.3, and you can consider using PDO instead of the MySQLi extension. Hope this article can help developers who encounter this problem.

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