question on using strtok

hi all,

I found problem on using strtok in the following case (the first object is "0"), I found my string not to be tokenlize when the delimiter is :,;....
but it works when the delimiter is "\n"

<?php
$string = "0:1:2:3:4";
$tok = strtok($string,":");
while ($tok) {
    echo "Word=$tok<br>";
    $tok = strtok(":");
}
?>

how can I fix this?
esther_6694Asked:
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_nn_Commented:
See http://www.php.net/manual/en/function.strtok.php

<quote>
Also be careful that your tokens may be equal to "0". This evaluates to FALSE in conditional expressions
</quote>

Use instead :

while ($tok !== false) {
0

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esther_6694Author Commented:
thanks for your answer, this is the first time for me to use of the !== operator! Thanks
0
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