PHP - Delete last 2 characters in a loop

I have the following which produces results for me.

foreach($authArray as $key=>$value){
    $query = mysql_query("SELECT * FROM table WHERE id='$value' LIMIT 1");
    $author = mysql_fetch_assoc($q开发者_C百科uery);
    echo $author['fullname'] .', ';
}

It prints it out perfect, except on the last run it still adds the comma and space, is there a way i can strip this from the last result, so its:

name, name, name, name

Instead of the following

name, name, name, name,

Cheers

A better way of doing this would be to separate out the handling of database results from the view/output logic, and then you can sidestep the issue all together, using implode to allow PHP to join each of your authors together into a single string, split by your delimiter of a comma and a space:

// your loop {
  $authors[] = $author['fullname'];
}

// your output
echo implode(', ', $authors);

Just concate the data into a string and then remove the last 2 chars using

$author['fullname'] = substr($author['fullname'], 0, -2);

Refer the manual for substr http://php.net/manual/en/function.substr.php

Instead of echoing each author out you could put them in a string and then simply use trim() to take off the trailing comma and finally echo the whole string.

this will probably work

foreach($authArray as $key=>$value){
    $query = mysql_query("SELECT * FROM table WHERE id='$value' LIMIT 1");
    $author = mysql_fetch_assoc($query);
    //echo $author['fullname'] .', ';
}

$name_count = count($author[]);

for($x=0;$x<$name_count ;$x++){
    if($x == $name_count -1){
        echo $author['fullname'];
    }else{
        echo $author['fullname'].", ";
    }
}

the idea is to detect the last array index, so that we can apply all the commas after each name except to the last one.

don't ever echo inside foreach

$var = '';
foreach($authArray as $key=>$value){
    $query = mysql_query("SELECT * FROM table WHERE id='$value' LIMIT 1");
    $author = mysql_fetch_assoc($query);
    $var .= $author['fullname'] .', ';
}

echo trim($var,', ');