Description:
------------
when dealing with a complex array that had nested levels with either 0 based index arrays or string based keys, i had to recursively parse each nested level to transform it in another layout. the parsing method used foreach regardless if it was a 0 based index or a string based one and at some levels that had a key 'id' i wanted to get rid of that. so i was testing if($key!='id') but that brakes the foreach in case of a 0 based indexed array. the solution was to add if(is_int($key) || $key!='id').

my impression is that something is happening when $key is an int in the case of 0 based index array and is compared to a string.

i have attached in the code box a smaller code that seems to show the problem by not echoing the first element of the array. if needed i will try to recreate the more complex code with the recursive parser.

Reproduce code:
---------------
<?php
$ar=array('a','b','c','d');

foreach($ar as $key => $value)
{
	echo 'ar['.$key.']='.$value.'<br>';
}

echo '<br><br>';

//should work but it doesn't
foreach($ar as $key => $value)
{
	if($key!='whatever string')
	{
		echo 'ar['.$key.']='.$value.'<br>';
	}
}

echo '<br><br>';

//this works
foreach($ar as $key => $value)
{
	if(is_int($key) || $key!='whatever string')
	{
		echo 'ar['.$key.']='.$value.'<br>';
	}
}

?>

Expected result:
----------------
ar[0]=a
ar[1]=b
ar[2]=c
ar[3]=d


ar[0]=a
ar[1]=b
ar[2]=c
ar[3]=d


ar[0]=a
ar[1]=b
ar[2]=c
ar[3]=d

Actual result:
--------------
ar[0]=a
ar[1]=b
ar[2]=c
ar[3]=d


ar[1]=b
ar[2]=c
ar[3]=d


ar[0]=a
ar[1]=b
ar[2]=c
ar[3]=d