将同名的多个输入插入一个数组[行]（以“^”分隔）

Question

I have multiple inputs (never being the same, because it's a dynamic add/remove jquery script, and it is all dependent on how many "tracks" the user wants to enter). I WILL NEVER KNOW HOW MANY WILL BE THERE. Below is an example of if a user chooses to add four "tracks" to their "mixtape".

<input size="32" class="mixtapetrack" type="textbox" id="track[1]" name="track[]" >
<input size="32" class="mixtapetrack" type="textbox" id="track[2]" name="track[]" >
<input size="32" class="mixtapetrack" type="textbox" id="track[3]" name="track[]" >
<input size="32" class="mixtapetrack" type="textbox" id="track[4]" name="track[]" >

When the form is submited (PHP POSTED), I want to take all of the inputs and combine them into one array, but sepparating them all by "^^^" .

---

This is what I have so far, for rendering out the inputs (NOT WORKING).

$trackVAR = $_POST['track'];

         $allmixtapetracks = "";

         foreach ($trackVAR as $value) {

    $allmixtapetracks .= '' . $value . '^';
  }

And This is what i'm using to insert into my table (WORKS, tested it without the variable and entered absoloute data)

$sql = mysql_query("INSERT INTO mixtapes (title, songs, posted_by_id, description, date) 
     VALUES('$mixtapetitle','$allmixtapetracks','$posted_by_id','$mixtapedescription', now())")  
     or die (mysql_error());

---

In the end I want it to look like this inside of the songs row

Title of first song haha ^^^ Title of second song!!! ^^^ The Title Of the third! ^^^ And The Title OF the Fourth

Answer 1

Use implode()

echo implode($trackVAR, " ^^^ ");

Answer 2

Replace your following code:

$trackVAR = $_POST['track'];

$allmixtapetracks = "";

foreach ($trackVAR as $value) {
    $allmixtapetracks .= '' . $value . '^';
}

with this:

$allmixtapetracks=implode('^^^',$_POST['track']);