3v4l.org

run code in 300+ PHP versions simultaneously
<?php function array2CSV(array $array) { $sanitized = array(); foreach ($array as $col) { $quote = false; if (preg_match('/[ \n\r\\\"]/', $col)) { $quote = true; } $col = str_replace(array('\\', '"', "\n", "\r"), array('\/', '\"', '\n', '\r'), $col); if ($quote) { $col = "\"$col\""; } $sanitized[] = $col; } return implode(',', $sanitized); } echo array2CSV(array('test', 'te"t\est'));

preferences:
41.94 ms | 402 KiB | 5 Q