3v4l.org

run code in 300+ PHP versions simultaneously
<?php function stripSpecialCharater($string) { $string = iconv("Windows-1252","UTF-8",urldecode($string)); $string = preg_replace(array('/\s{2,}/', '/[\t\n]/'), ' ', $string); return preg_replace('/[^a-zA-Z0-9ç&-©‚ƒ‘\s]/', '', $string); } $tests = ['12 34', 'adsf', 'co©', 'pound £']; foreach ($tests as $test) { echo "$test : " , stripSpecialCharater($test), "\n"; }
based on R1m17
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.28, 7.4.0 - 7.4.16, 8.0.0 - 8.0.3
12 34 : 12 34 adsf : adsf co© : co© pound £ : pound £