Online PHP editor | output for KAjAL

<?php $tests=[ 'Non-Images Only'=>'filename 1 (https://example.com/test.exe)', 'Mixed-Type'=>'filename 1 (https://example.com/test.pdf), filename 2 (https://example.com/cool_image.jpg), filename 3 (https://example.com/other-file.docx), filename 4 (https://example.com/nice_image.png)', 'No Files'=>'filename 1 (), filename 2 ()', 'Images-Only'=>'filename 1 (https://example.com/another.png), filename 2 (https://example.com/cool_image.jpg))']; $image_pattern='~\.(?:png|gif|jpe?g|bmp)\),?$~im'; $non_image_pattern='~\.(?:(?:png|gif|jpe?g|bmp)(*SKIP)(*FAIL)|[^.)]+)\),?$~im'; foreach($tests as $type=>$string){ echo "\t\tAssessing:\n---\n"; echo "$string\n---\n"; echo "Expecting: $type\n"; echo "Assessed as: "; $has_image=preg_match($image_pattern,$string); $has_non_image=preg_match($non_image_pattern,$string); if($has_image){ if($has_non_image){ echo "Mix of image and non-image files"; }else{ echo "Purely image files"; } }else{ if($has_non_image){ echo "Purely non-image files"; }else{ echo "No files recognized"; } } echo "\n----------------------------------------------------\n"; }