Problem with min() and max()

[hilda]

Hello everyone I've got a salary.txt as follow:

500001700065003500022100456609000

And the php code with follow:

<?$salary = file("salary.txt");echo max($salary);echo min($salary);?>

But the output is: 900017000 Any ideas? Thanks!

[boen_robot]

The output from file() are strings of lines, not integers. The rules for comparing strings are different.You need to go over the lines, and convert the strings to numbers before you check them, e.g.

<?php$salary = file('salary.txt');for($i=0, $c=count($salary); $i<$c; ++$i) {    $salary[$i] = (int) $salary[$i];}//OK, now it's all integersecho max($salary);echo min($salary);