How to make a counter with zero left

Asked

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11

I need to print values like this, with zeros on the left

00001
00002
00003

for($i = 00001; $i < 10000; $i++){
   validar($i);
   echo $i."\n\r";
}
php

1 answer

12


Just use str_pad:

for($i = 1; $i < 10000; $i++){
   echo str_pad( $i, 5, '0', STR_PAD_LEFT ) . "\n";
}

Upshot:

00001
00002
00003
00004
00005
    ⋮

See working on IDEONE.


Parameters: input value, desired size, fill character(s), position.

See the online documentation to know the details of the function.

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