WordPress at a glance

update_user_meta() WP 1.0

Update user meta field based on user ID.

Use the $prev_value parameter to differentiate between meta fields with the same key and user ID.

If the meta field for the user does not exist, it will be added.

Is the basis for: update_user_option()
Works based on: update_metadata()
✈ 1 time = 0.000987s = slow | 50000 times = 45.34s = very slow PHP 7.0.8, WP 4.6.1

No Hooks.

Return

Int/true/false. Meta ID if the key didn't exist, true on successful update, false on failure.

Usage

update_user_meta( $user_id, $meta_key, $meta_value, $prev_value );
$user_id(int) (required)
User ID.
$meta_key(string) (required)
Metadata key.
$meta_value(mixed) (required)
Metadata value.
$prev_value(mixed)
Previous value to check before removing.
Default: ''

Code of update_user_meta: wp-includes/user.php VER 4.9.8

<?php
function update_user_meta($user_id, $meta_key, $meta_value, $prev_value = '') {
	return update_metadata('user', $user_id, $meta_key, $meta_value, $prev_value);
}

Related Functions

From tag: Metadatas (any)

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