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update_home_siteurl()

update_home_siteurl( string $old_value, string $value )

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Flushes rewrite rules if siteurl, home or page_on_front changed.

Parameters

$old_valuestringrequired
$valuestringrequired

Source

function update_home_siteurl( $old_value, $value ) {
	if ( wp_installing() ) {
		return;
	}

	if ( is_multisite() && ms_is_switched() ) {
		delete_option( 'rewrite_rules' );
	} else {
		flush_rewrite_rules();
	}
}

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UsesDescription
wp_installing()wp-includes/load.php

Checks or sets whether WordPress is in “installation” mode.

delete_option()wp-includes/option.php

Removes an option by name. Prevents removal of protected WordPress options.

flush_rewrite_rules()wp-includes/rewrite.php

Removes rewrite rules and then recreate rewrite rules.

ms_is_switched()wp-includes/ms-blogs.php

Determines if switch_to_blog() is in effect.

is_multisite()wp-includes/load.php

Determines whether Multisite is enabled.

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Changelog

VersionDescription
2.1.0Introduced.

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