[php-src] Issue #9144: fputcsv / fgetcsv escape quoting

Issue: https://github.com/php/php-src/issues/9144 Author: Tatikoma ### Description The following code: ```php <?php $txt = "1\\\\\",2"; $fh = fopen('php://memory', 'a+b'); fputcsv($fh, [$txt]); fseek($fh, 0, SEEK_SET); $read = fgetcsv($fh); fclose($fh); assert(count($read) == 1); ``` Resulted in this output: ``` PHP Warning: Uncaught AssertionError: assert(count($read) == 1) in php shell code:1 Stack trace: #0 php shell code(1): assert(false, 'assert(count($r...') #1 {main} thrown in php shell code on line 1 Warning: Uncaught AssertionError: assert(count($read) == 1) in php shell code:1 Stack trace: #0 php shell code(1): assert(false, 'assert(count($r...') #1 {main} thrown in php shell code on line 1 ``` But I expected this output instead: ``` No output, assertion should be okay. ``` ### PHP Version PHP 8.1.7 (cli) (built: Jun 9 2022 14:08:46) (NTS) ### Operating System macOS Monterey, Alpine (Docker)