OO way or functional way of string comparison conditionals in php - php

Question

I am curling on a specific page that returns only html. To determine what page it returns, I simply try to stripos the result of the curl
Like so:
$result = curl_exec($ch);
if(stripos($result, 'success') !== false) {
// do something
} else {
if (stripos($result, 'foo') !== false) {
// do something
} else if (stripos($result, 'foo') !== false) {
// do something
} else if (stripos($result, 'bar') !== false) {
// do something
} else if (stripos($result, 'bazz') !== false) {
// do something
} else {
// do something
}
}
This is quite messy I think, is there an OO way or functional way to solve this kind of problem if I were looking at minimal if statements or ultimately an if-less code.

Answer 1

What you are searching for a ways of abstraction. In this example you are repeating yourself in case analysis and this might be the best approach if the "do something" is very different and not consistent.
$map = [ 'success' => function () { return 1; },
'foo' => function () { return 2; },
'bar' => function () { return 3; },
'bazz' => function () { return 4; } ];
foreach ( $map as $search => $value )
{
if (stripos($result, $search) !== false )
{
return call_user_func($value);
}
}
In my example these could just have been constants and we could just return them instead of applying a function. In a functional pattern this would be like the function any in Scheme SRFI-1 except it returns it's true value:
// This function uses PHP 5.6 ellipsis
function array_any(callable $callable, ...$arrays) {
if( count($arrays) == 1 ) {
$args_zipped = array_map( function ($x) { return [$x]; }, $arrays[0]);
} else {
array_unshift( $arrays, null);
$args_zipped = call_user_func_array( "array_map", $arrays);
}
foreach ( $args_zipped as $args ) {
$result = call_user_func_array($callable, $args);
if( $result !== false )
return $result;
}
return false;
}
array_any( function ($search, $value) {
if ( stripos($result, $search) !== false )
return $value;
return false;
},
array_keys($map),
array_values($map));
The function in itself uses linear update, but as you can see it works similar to array_map.

Answer 2

This simple function would do that work:
function checkWord ($haystack,$needle){
foreach ($needle as $word) {
if (stripos($haystack, $word) !== false) {
echo $word." was found!<br/>";
}
else{
echo $word." wasn't found<br/>";
}
}
}
checkWord("Hello what's up?",array('Hello','Huhud','up','?'));
This will output:-
Hello was found!
Huhud wasn't found
up was found!
? was found!