PHP equivalent to Python's enumerate()?

Question

In Python I can write:

for i, val in enumerate(lst):
    print i, val

The only way I know how to do this in PHP is:

for($i = 0; $i < count(lst); $i++){
    echo "$i $val\n";
}

Is there a cleaner way in PHP?

Answer 1

Use foreach:

foreach ($lst as $i => $val) {
    echo $i, $val;
}

Answer 2

Yes, you can use foreach loop of PHP:

 foreach($lst as $i => $val)
       echo $i.$val;

Answer 3

Don't trust PHP arrays, they are like Python dicts. If you want safe code consider this:

<?php
$lst = array('a', 'b', 'c');
unset($lst[1]);
foreach ($lst as $i => $val) {
        echo "$i $val \n";
}
foreach (array_values($lst) as $i => $val) {
        echo "$i $val \n";
}
?>

-

0 a 
2 c 
0 a 
1 c