Count Chars Delimiter

count-chars-delimiter.php

<?php

function count_chars_delimiter( string $str, string $delimiter = ',' ) {
    $arr = [];
    foreach ( array_filter( array_map( 'trim', explode( $delimiter, $str ) ), function( $v ) { return ( $v !== '' ); } ) as $value ) {
        $arr[$value] = isset( $arr[$value] ) ? $arr[$value] : 0;
        $arr[$value]++;
    }
    return $arr;
}

$str = ',2, 2 , 0,0 ,2,10,15,15,25,300,50,,  , , ,,,,,,,,,,2,10';
$arr = count_chars_delimiter( $str, ',' );
print '<pre>' . var_export( $arr, true ) . '</pre>';

$str = '|3| 3 | 0|0 |3|11|16|16|26|301|51||  | | ||||||||||3|11';
$arr = count_chars_delimiter( $str, '|' );
print '<pre>' . var_export( $arr, true ) . '</pre>';

/*

array (
  2 => 4,
  0 => 2,
  10 => 2,
  15 => 2,
  25 => 1,
  300 => 1,
  50 => 1,
)
array (
  3 => 4,
  0 => 2,
  11 => 2,
  16 => 2,
  26 => 1,
  301 => 1,
  51 => 1,
)

//*/

?>