Answers for "php count specific array value"

php count items in array

<?php
$a[0] = 1;
$a[1] = 3;
$a[2] = 5;
var_dump(count($a));

$b[0]  = 7;
$b[5]  = 9;
$b[10] = 11;
var_dump(count($b));

var_dump(count(null));

var_dump(count(false));
?>
  /* result
  
  
int(3)
int(3)

Warning: count(): Parameter must be an array or an object that implements Countable in … on line 12 // as of PHP 7.2
int(0)

Warning: count(): Parameter must be an array or an object that implements Countable in … on line 14 // as of PHP 7.2
int(1)

*/
<?php
$a=array("A","Cat","Dog","A","Dog");
print_r(array_count_values($a));
?>
 <?php
 $vegetables = ["Cabbage", "Carrot", "Lettuce"];
 $arrayLength = count($vegetables);
 echo $arrayLength; //returns 3
?>
$cars=array("Volvo","BMW","Toyota");
echo count($cars);
//returns 3

php count amount of times a value appears in array

$tmp = array_count_values($uid);
$cnt = $tmp[12];
//Or
$cnt = count(array_filter($uid,function($a) {return $a==12;}));
//In both cases $var will be a number