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@ 2018-08-08T11:44:00Z

<?php

$str = '___RN___RN___R___N___RN___RN';
$del = array('RN', 'R', 'N');

# This won't work if delimiters 2-n include characters from delimiter 1
var_dump(explode( $del[0], str_replace($del, $del[0], $str)));

# This, however, will work
function array_explode($delimiters, $string){
	if(!is_array(($delimiters)) && !is_array($string)){
		//if neither the delimiter nor the string are arrays
		return explode($delimiters,$string);
	} else if(!is_array($delimiters) && is_array($string)) {
		//if the delimiter is not an array but the string is
		foreach($string as $item){
			foreach(explode($delimiters, $item) as $sub_item){
				$items[] = $sub_item;
			}
		}
		return $items;
	} else if(is_array($delimiters) && !is_array($string)) {
		//if the delimiter is an array but the string is not
		$string_array[] = $string;
		foreach($delimiters as $delimiter){
			$string_array = array_explode($delimiter, $string_array);
		}
		return $string_array;
	}
}

var_dump(array_explode($del,$str));

Output for 5.6.38 - 5.6.40, 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: array(11) { [0]=> string(4) "___R" [1]=> string(0) "" [2]=> string(4) "___R" [3]=> string(0) "" [4]=> string(4) "___R" [5]=> string(3) "___" [6]=> string(4) "___R" [7]=> string(0) "" [8]=> string(4) "___R" [9]=> string(0) "" [10]=> string(0) "" } array(7) { [0]=> string(3) "___" [1]=> string(3) "___" [2]=> string(3) "___" [3]=> string(3) "___" [4]=> string(3) "___" [5]=> string(3) "___" [6]=> string(0) "" }
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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