upgrade_100()

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Performance profile

How much work a call to upgrade_100() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reaches the database via ->get_results().

Scaling

Scales with input

The body loops, so the work grows with how much data it finds.

Instructions

57–71

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 153.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• sqldatabase query->get_results()called directly
• hookthird-party callbacksapply_filters()one call below upgrade_100()

Further down the call graph this can also reach option, cache, serialize, query and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 1 distinct outcome

One number would be a lie: the work depends on which branch runs. These are every distinct cost upgrade_100() can have, taken from its control-flow graph on PHP 8.5.

Uses · 1

• sanitize_title()Sanitizes a string into a slug, which can be used in URLs or HTML attributes.

Used by · 1

• upgrade_all()Functions to be called in installation and upgrade scripts.

Source code

View on Trac ↗View on GitHub ↗

909function upgrade_100() {910	global $wpdb;911 912	// Get the title and ID of every post, post_name to check if it already has a value.913	$posts = $wpdb->get_results( "SELECT ID, post_title, post_name FROM $wpdb->posts WHERE post_name = ''" );914	if ( $posts ) {915		foreach ( $posts as $post ) {916			if ( '' === $post->post_name ) {917				$newtitle = sanitize_title( $post->post_title );918				$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_name = %s WHERE ID = %d", $newtitle, $post->ID ) );919			}920		}921	}922 923	$categories = $wpdb->get_results( "SELECT cat_ID, cat_name, category_nicename FROM $wpdb->categories" );924	foreach ( $categories as $category ) {925		if ( '' === $category->category_nicename ) {926			$newtitle = sanitize_title( $category->cat_name );927			$wpdb->update( $wpdb->categories, array( 'category_nicename' => $newtitle ), array( 'cat_ID' => $category->cat_ID ) );928		}929	}930 931	$sql = "UPDATE $wpdb->options932		SET option_value = REPLACE(option_value, 'wp-links/links-images/', 'wp-images/links/')933		WHERE option_name LIKE %s934		AND option_value LIKE %s";935	$wpdb->query( $wpdb->prepare( $sql, $wpdb->esc_like( 'links_rating_image' ) . '%', $wpdb->esc_like( 'wp-links/links-images/' ) . '%' ) );936 937	$done_ids = $wpdb->get_results( "SELECT DISTINCT post_id FROM $wpdb->post2cat" );938	if ( $done_ids ) :939		$done_posts = array();940		foreach ( $done_ids as $done_id ) :941			$done_posts[] = $done_id->post_id;942		endforeach;943		$catwhere = ' AND ID NOT IN (' . implode( ',', $done_posts ) . ')';944	else :945		$catwhere = '';946	endif;947 948	$allposts = $wpdb->get_results( "SELECT ID, post_category FROM $wpdb->posts WHERE post_category != '0' $catwhere" );949	if ( $allposts ) :950		foreach ( $allposts as $post ) {951			// Check to see if it's already been imported.952			$cat = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->post2cat WHERE post_id = %d AND category_id = %d", $post->ID, $post->post_category ) );953			if ( ! $cat && 0 !== (int) $post->post_category ) { // If there's no result.954				$wpdb->insert(955					$wpdb->post2cat,956					array(957						'post_id'     => $post->ID,958						'category_id' => $post->post_category,959					)960				);961			}962		}963	endif;964}

Changelog

Introduced in 1.0.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.1.0 tag, from src/wp-admin/includes/upgrade.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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