max
(PHP 3, PHP 4, PHP 5)
max -- Find highest value
Description
mixed
max ( array values )
mixed
max ( mixed value1, mixed value2 [, mixed value3...] )
If the first and only parameter is an array, max()
returns the highest value in that array. If at least two parameters are
provided, max() returns the biggest of these values.
Note:
PHP will evaluate a non-numeric string as
0, but still return the string if it's seen as the
numerically highest value. If multiple arguments evaluate to
0, max() will return a numeric
0 if given, else the alphabetical highest string
value will be returned.
Parameters
values
An array containing the values.
Return Values
max() returns the numerically highest of the
parameter values.
Examples
Example 1. Example uses of max()
<?php
echo max(1, 3, 5, 6, 7); // 7
echo max(array(2, 4, 5)); // 5
echo max(0, 'hello'); // 0
echo max('hello', 0); // hello
echo max(-1, 'hello'); // hello
// With multiple arrays, max compares from left to right
// so in our example: 2 == 2, but 4 < 5
$val = max(array(2, 4, 8), array(2, 5, 7)); // array(2, 5, 7)
// If both an array and non-array are given, the array
// is always returned as it's seen as the largest
$val = max('string', array(2, 5, 7), 42); // array(2, 5, 7)
?>
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