how to remove string from the end of foreach loop - php

Question

can I remove the OR from the end of foreach loop
if (isset($_POST['size'])) {
$where .= ' AND ';
$s = $_POST['size'];
$end = count($s);
foreach ($s as $ss) {
$where .= 'pSize=' . $ss;
$where .= ' OR ';
}
} else {
$s = '';
}

Answer 1

with your condition, i think you use IN for easy.
if (isset($_POST['size'])) {
$size = $_POST['size'];
if($size){
$where .= ' AND `pSize` IN ('.implode(",", $size).')';
}
}

Answer 2

this will also work in your case:
if (isset($_POST['size'])) {
$where .= ' AND ';
$s = $_POST['size'];
$end = count($s);
for($i=0;$i<count($s);$i++) {
$where .= 'pSize=' . $s[$i];
if($i != count($s)-1){
$where .= ' OR ';
}
}
} else {
$s = '';
}

Answer 3

One way to avoid that issue is create an array and implode.
if (isset($_POST['size'])) {
$where .= ' AND (';
$s = $_POST['size'];
$end = count($s);
//echo $end;
$aWhere = [];
foreach ($s as $ss) {
$aWhere[] = 'pSize=' . $ss;
}
$where .= implode(' OR ', $aWhere) . ')';
} else {
$s = '';
}
Maybe you need parentheses on the Where, I did it for you.
Take care with SQL injection, use prepared statements.

Answer 4

you can go for many ways
way 1:
you can go for for loop instead of foreach()
$a=sizeof($s);
$x=$a-1;
for($i=0;$i<$a;$i++){
if($i==$x){ $where .= 'pSize=' . $ss;
}
else{ $where .= 'pSize=' . $ss;
$where .= ' OR ';
}
}
way2 : use rtrim()
foreach ($s as $ss) {
$where .= 'pSize=' . $ss;
$where .= ' OR ';
}
$where=rtrim($where,' OR ');

Answer 5

There are many ways to do this. You can even use a for loop. If you'd prefer a foreach loop, you can create an iterator variable to mimic a for loop as follows:
if (isset($_POST['size'])) {
$where .= ' AND ';
$s = $_POST['size'];
$end = count($s);
$i = 0;
foreach ($s as $ss) {
$where .= 'pSize=' . $ss;
if (++$i != $end)
$where .= ' OR ';
}
} else {
$s = '';
}