Question

I have the array example below that I am using to dynamically create an SQL query based on the options ticked in a form. The code below tests whether there is a value, if so, append it to the array:

if ($lookchild) { $val[]='lookchild'; }
if ($mentalcap) { $val[]='mentalcap'; }
if ($mentalheal) { $val[]='mentalheal'; }
if ($olderpeople) { $val[]='olderpeople'; }
if ($palcare) { $val[]='palcare'; }

I am then looping through the array and adding the rest of the SQL statement:

foreach ($val as $r){
    echo $r.'=1 AND ';
}   

This produces:

olderpeople=1 AND palcare=1 AND lookchild=1 AND

When the loop reaches the last entry, I don’t want it to append the AND to it as the SQL statement needs to close after that point.

How I want it to complete:

olderpeople=1 AND palcare=1 AND lookchild=1

Answer 1

Implode

In these situations you can use implode

It ‘glues’ an array together.

implode ( string $glue , array
$pieces )

Example:

echo implode('=1 AND ', $val);
echo '=1';