Using explode() with a foreach loop

[ericburnard]

I seem to be struggling massively with this little problem. im sure its just a little something I am missing but it has be winding me up for hours.

 

This is the said code. 

<?

$id = $_POST['id'];
$tags = $_POST['tags'];

foreach( $id as $n ) {

 $tags = $tags[$n];
  echo '<br><br>'.$tags.'---'.$n.'<br>';
 $tags = explode(", ", $tags);
 $num=count($tags);
  echo "$num<br>";
   foreach( $tags as $tag ) {
     print "ID: ".$n." ---  tag: ".$tag." <br>\n";
  }
  
}
?>

It finishes one full loop through fine, separates out all of the tags and puts them with the correct id. But when it moves onto the second full loop it seems to be getting nothing out of here 

 $tags = $tags[$n];

I have tried changing  the $n for one of the id numbers to make sure it is pulling the data from the $_POST[] and it is. The following is the results I am getting.

cheese, more cheese, even more cheese---409
3
ID: 409 --- tag: cheese 
ID: 409 --- tag: more cheese 
ID: 409 --- tag: even more cheese 


---287
1
ID: 287 --- tag: 


---288
1
ID: 288 --- tag: 


---406
1
ID: 406 --- tag: 


---407
1
ID: 407 --- tag: 


---408
1
ID: 408 --- tag: 

Any help or pointers in the right direction would be a massive help.

 

Eric

[Ch0cu3r]

You are overwriting the original value of $tags twice in the foreach loop.

 

You'll need to use a different variable name.

<?php

$id = $_POST['id'];
$tags = $_POST['tags'];

foreach( $id as $n ) {

  $tag_list = $tags[$n];
  echo '<br><br>'.$tag_list .'---'.$n.'<br>';
  $tag_list_array = explode(", ", $tags_list);
  $num=count($tags);
  echo "$num<br>";
  foreach( $tag_list_array as $tag ) {
     print "ID: ".$n." ---  tag: ".$tag." <br>\n";
  }
}
?>

[ericburnard]

Always something so simple. I think I have been overwriting my brain as well today!

 

You're a superstar 

Thanks!