What causes a php foreach loop to terminate?

Question

I have been having problems on one of my foreach loops where PART of the loop terminates after just one iteration, with no output or error.

After searching the web for answers, I still don't know any possible causes for this issue (and the code is too large to be useful to the community...)

Therefore my question is, "what are the possible causes for a foreach loop to terminate after just one iteration?" (assuming more iterations are required)

break, die and return can all cancel a foreach totally, continue can skip the iteration but will not break a loop. — Sammaye
– Sammaye, Commented Jan 13, 2013 at 16:23
"PART of the loop terminates after just one iteration" = One item in the array. — vascowhite
– vascowhite, Commented Jan 13, 2013 at 16:28

Samuel Cook · Accepted Answer · 2013-01-13 16:22:27Z

0

There are multiple ways to stop a foreach loop. Here are a few examples:

<?php
$range = range(1,10);

// continue;
foreach($range as $r){
    if($r!=1){
        continue;
    }
    echo $r.'<br>';
}

// break;
foreach($range as $r){
    if($r>1){
        break;
    }
    echo $r.'<br>';
}

// die;
foreach($range as $r){
    if($r>1){
        die;
    }
}

Note: continue will not break out of the foreach loop, but can cause data rows to be "skipped"

answered Jan 13, 2013 at 16:22

Samuel Cook

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2 Comments

user1592648 Over a year ago

continue won't terminate the loop, but skip to the next index.

Samuel Cook Over a year ago

yeah, i added that to the bottom.

Ajay Nigam · Accepted Answer · 2013-01-13 16:24:33Z

0

It works only on arrays and objects, and will issue an error when you try to use it on a variable with a different data type or an uninitialized variable.

I think that you should have to follow this link http://php.net/manual/en/control-structures.foreach.php for better knowledge about foreach loop.

answered Jan 13, 2013 at 16:24

Ajay Nigam

367 bronze badges

1 Comment

Sammaye Over a year ago

If he were experiencing this then the foreach would throw a fatal and would not even go into the first iteration.

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