PHP if condition fails inside a foreach loop - php

Question

<?php
$key='APS';
$value='A|B|';
if ($key == 'APS'){
$aps = $key;
if (!empty($value)){
if(preg_match("/\|/",$value)){
$elephant = explode('|',$value);
foreach ($elephant as $elekey=>$elevalue){
if($elevalue = 'A'){
$elevalue_a=$elevalue;
if(isset($aps) && ($aps != '')){
if(isset($elevalue_a) && ($elevalue_a != '')){
echo $elevalue;
echo '<br>';
}
}
}
if($elevalue = 'B'){
$elevalue_a=$elevalue;
if(isset($aps) && ($aps != '')){
if(isset($elevalue_a) && ($elevalue_a != '')){
echo $elevalue;
echo '<br>';
}
}
}
if($elevalue = 'C'){
$elevalue_a=$elevalue;
if(isset($aps) && ($aps != '')){
if(isset($elevalue_a) && ($elevalue_a != '')){
echo $elevalue;
echo '<br>';
}
}
}
if($elevalue = 'D'){
$elevalue_a=$elevalue;
if(isset($aps) && ($aps != '')){
if(isset($elevalue_a) && ($elevalue_a != '')){
echo $elevalue;
echo '<br>';
}
}
}
if($elevalue = 'E'){
$elevalue_a=$elevalue;
if(isset($aps) && ($aps != '')){
if(isset($elevalue_a) && ($elevalue_a != '')){
echo $elevalue;
echo '<br>';
}
}
}
}
}
else{
echo $singlevalue = $value;
}
}
else {
echo $value='NIL';
}
}
?>
The above code may be lengthy but it's a very simple example, where if you execute you can see the if conditions will be failing to escape the loops.
Why in PHP if condition fails inside a foreach loop?

Answer 1

The Problem : You are using assignment operator inside if statements
Replace = with == or === (strict check)
if($elevalue = 'B'){
to
if($elevalue == 'B'){ [or] if($elevalue === 'B'){