wp_mkdir_p( string $target ): bool

Source

function wp_mkdir_p( $target ) {	$wrapper = null;	// Strip the protocol.	if ( wp_is_stream( $target ) ) {	list( $wrapper, $target ) = explode( '://', $target, 2 );	}	// From php.net/mkdir user contributed notes.	$target = str_replace( '//', '/', $target );	// Put the wrapper back on the target.	if ( null !== $wrapper ) {	$target = $wrapper . '://' . $target;	}	/* * Safe mode fails with a trailing slash under certain PHP versions. * Use rtrim() instead of untrailingslashit to avoid formatting.php dependency. */	$target = rtrim( $target, '/' );	if ( empty( $target ) ) {	$target = '/';	}	if ( file_exists( $target ) ) {	return @is_dir( $target );	}	// Do not allow path traversals.	if ( str_contains( $target, '../' ) || str_contains( $target, '..' . DIRECTORY_SEPARATOR ) ) {	return false;	}	// We need to find the permissions of the parent folder that exists and inherit that.	$target_parent = dirname( $target );	while ( '.' !== $target_parent && ! is_dir( $target_parent ) && dirname( $target_parent ) !== $target_parent ) {	$target_parent = dirname( $target_parent );	}	// Get the permission bits.	$stat = @stat( $target_parent );	if ( $stat ) {	$dir_perms = $stat['mode'] & 0007777;	} else {	$dir_perms = 0777;	}	if ( @mkdir( $target, $dir_perms, true ) ) {	/* * If a umask is set that modifies $dir_perms, we'll have to re-set * the $dir_perms correctly with chmod() */	if ( ( $dir_perms & ~umask() ) !== $dir_perms ) {	$folder_parts = explode( '/', substr( $target, strlen( $target_parent ) + 1 ) );	for ( $i = 1, $c = count( $folder_parts ); $i <= $c; $i++ ) {	chmod( $target_parent . '/' . implode( '/', array_slice( $folder_parts, 0, $i ) ), $dir_perms );	}	}	return true;	}	return false; } 

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