Codinggame | MIME types solution in PHP

mime.php

<?php

// Number of elements which make up the association table.
fscanf(STDIN, "%d", $N);

// Number Q of file names to be analyzed.
fscanf(STDIN, "%d", $Q);

// File extensions to MIME types assosciations 
$ext_to_MIME = array();
for ($i = 0; $i < $N; $i++) {
	fscanf(STDIN, "%s %s", $EXT, $MT);
	$ext_to_MIME[$EXT] = $MT;
}

// Files
$files = array();
for ($i = 0; $i < $Q; $i++) {
	$files[] = stream_get_line(STDIN, 500 + 1, "\n");
}

// Génération du Ouput
foreach ($files as $file) {
	// Obtenir l'extension du fichier
	$parts = explode('.',$file);
	$extension = end($parts);

	// Afficher le MIME type ou 'UNKNOWN'
	echo array_key_exists($extension, $ext_to_MIME) 
		? $ext_to_MIME[$extension]
		: 'UNKNOWN'
	;
	echo "\n";
}