At 7:19 AM +0530 6/10/10, Shreyas wrote:
PHP'ers,
I am reading a PHP book which explains foreach and at the end says : *'When
foreach starts walking through an array, it moves the pointer to
the beginning of the array. You don't need to reset an array before
walking through it with foreach.'*
*
*
*Does this mean - *
*1) Before I navigate the array, foreach will bring the pointer to the
starting key?*
*2) After the first index, it goes to 2nd, 3rd, and nth? *
Regards,
Shreyas
Shreyas:
This is one of those questions that you can test very easily, just
initialize an array and try it.
<?php
$test = array(a, b, c, d);
foreach ($test as $value)
{
echo("value = $value <br>");
}
?>
As the references show, there are two versions of the "foreach", the
one above and this:
<?php
$test = array(a, b, c, d);
foreach ($test as $key => $value)
{
echo("$key= $key value=$value <br>");
}
?>
Note that you can pull-out the index (i.e., $key) as well as the
value (i.e., $value) of each index. The "<br>" is only to add a
linefeed in html.
This is a bit easier than using a for() loop.
Cheers,
tedd
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