Math Functions
PHP Manual


(PHP 4, PHP 5, PHP 7)

minFind lowest value


mixed min ( array $values )
mixed min ( mixed $value1 , mixed $value2 [, mixed $... ] )

If the first and only parameter is an array, min() returns the lowest value in that array. If at least two parameters are provided, min() returns the smallest of these values.


Values of different types will be compared using the standard comparison rules. For instance, a non-numeric string will be compared to an integer as though it were 0, but multiple string values will be compared alphanumerically. The actual value returned will be of the original type with no conversion applied.



An array containing the values.


Any comparable value.


Any comparable value.


Any comparable value.

Return Values

min() returns the parameter value considered "lowest" according to standard comparisons. If multiple values of different types evaluate as equal (e.g. 0 and 'abc') the first provided to the function will be returned.

If an empty array is passed, then FALSE will be returned and an E_WARNING error will be emitted.


Example #1 Example uses of min()

echo min(23167);  // 1
echo min(array(245)); // 2

// The string 'hello' when compared to an int is treated as 0
// Since the two values are equal, the order they are provided determines the result
echo min(0'hello');     // 0
echo min('hello'0);     // hello

// Here we are comparing -1 < 0, so -1 is the lowest value
echo min('hello', -1);    // -1

// With multiple arrays of different lengths, min returns the shortest
$val min(array(222), array(1111)); // array(2, 2, 2)

// Multiple arrays of the same length are compared from left to right
// so in our example: 2 == 2, but 4 < 5
$val min(array(248), array(251)); // array(2, 4, 8)

// If both an array and non-array are given, the array is never returned
// as comparisons treat arrays as greater than any other value
$val min('string', array(257), 42);   // string

// If one argument is NULL or a boolean, it will be compared against
// other values using the rule FALSE < TRUE regardless of the other types involved
// In the below examples, both -10 and 10 are treated as TRUE in the comparison
$val min(-10FALSE10); // FALSE
$val min(-10NULL10);  // NULL

// 0, on the other hand, is treated as FALSE, so is "lower than" TRUE
$val min(0TRUE); // 0

See Also

Math Functions
PHP Manual