acf_uniqid() │ ACF 5.7.10

Returns a unique numeric based id.

No Hooks.

Returns

String.

Usage

acf_uniqid( $prefix );
$prefix(string)
The id prefix.
Default: 'acf'

Changelog

Since 5.7.10 Introduced.

acf_uniqid() code ACF 6.8.8

acf/includes/acf-helper-functions.php 
function acf_uniqid( $prefix = 'acf' ) {

	// Instantiate global counter.
	global $acf_uniqid;
	if ( ! isset( $acf_uniqid ) ) {
		$acf_uniqid = 1;
	}

	// Return id.
	return $prefix . '-' . $acf_uniqid++;
}