_usort_by_first_member( array $a, array $b ): int

This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

Sorts a multidimensional array by first member of each top level member.

Description

Used by uasort() as a callback, should not be used directly.

Parameters

$aarrayrequired
$barrayrequired

Return

int

Source

function _usort_by_first_member( $a, $b ) {
	return strnatcasecmp( $a[0], $b[0] );
}

Changelog

VersionDescription
2.9.0Introduced.

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