- strpos: documentation ( source)
- array_reverse: documentation ( source)
- explode: documentation ( source)
<?php
$a = "this is school of sachin";
$pattern = "sch";
$b = explode(' ',$a);
$b = array_reverse($b);
for($i=0;$i < count($b);$i++){
if(strpos($b[$i],$pattern) !== false){
echo $i+1;
if($pattern == $b[$i]){
echo ',full word';
}
else{
echo '/n not a full word';
}
}
}
?>