wp-includes/functions.php:1310HTTP request for URI to retrieve content.
$uristringstring|falsefunction wp_remote_fopen( $uri ) { $parsed_url = parse_url( $uri ); if ( ! $parsed_url || ! is_array( $parsed_url ) ) { return false; } $options = array(); $options['timeout'] = 10; $response = wp_safe_remote_get( $uri, $options ); if ( is_wp_error( $response ) ) { return false; } return wp_remote_retrieve_body( $response );}Introduced in 1.5.1. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.