PHP str_pad Problem

[cdikland]

I have a very perculiar problem with the str_pad function. In particular the pad_len. If this number is greater than 4 it wont work. EXAMPLE:

 

$headerID=3;

$paddedHeaderID=str_pad($headerID, 4, "0", STR_PAD_LEFT);

 

// results in 0003 as expected HOWEVER...

 

$paddedHeaderID=str_pad($headerID, 6, "0", STR_PAD_LEFT);

 

// results in 000000 AND the value of $headerID is set to zero ???

 

 

What am I doing wrong.

 

 

[kenrbnsn]

I just tried your code, it seems to work for me in PHP 4.4.4

 

How are you determining the contents of $paddedHeaderID?

 

You can also use the sprintf() function to produce padded strings:

<?php
$paddedHeaderID = sprintf("%06d",$headerID);
echo $paddedHeaderID;
?>

 

Ken

[cdikland]

I just tried your code, it seems to work for me in PHP 4.4.4

 

How are you determining the contents of $paddedHeaderID?

 

You can also use the sprintf() function to produce padded strings:

<?php
$paddedHeaderID = sprintf("%06d",$headerID);
echo $paddedHeaderID;
?>

 

Ken

 

I was running it under version 5.2 AND it did not work yesterday ??? (I was using echo $paddedHeaderID?). Since then I rebooted my server AND wouldnt you know it... It works... 

I spent a lot of time on it yesterday even though I had an alternative already working. I was curious why the str_pad did not work even though there appears nothing in the documentation about this "limitation". Why it works now, after the reboot is beyond me.  ??? Oh well....