Bug #77927 [Fbk->NoF]: popen() merge two consequent lines from stream (for big streams 1Mb or above)

Edit report at https://bugs.php.net/bug.php?id=77927&edit=1 ID: 77927 Updated by: php-bugs@lists.php.net Reported by: alexeykirpa at gmail dot com Summary: popen() merge two consequent lines from stream (for big streams 1Mb or above) -Status: Feedback +Status: No Feedback Type: Bug Package: Filesystem function related Operating System: Windows 7+ PHP Version: 7.2.17 Assigned To: cmb Private report: N New Comment: No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Re-Opened". Thank you. Previous Comments: ------------------------------------------------------------------------ [2019-04-24 12:23:09] cmb@php.net I can neither reproduce the reported behavior with PHP 7.2 nor 7.3. Please try again with one of the latest snapshots[1]. If the issue persists, please state the exact filename of the snapshot, and which Server API you are using, and what's the value of auto_detect_line_endings (see PHP info). [1] <https://windows.php.net/downloads/snaps/> ------------------------------------------------------------------------ [2019-04-20 12:22:01] alexeykirpa at gmail dot com also you may use next script to generated MyTest.csv for tests <?php $fn = fopen("./MyTest.csv", "w+"); if($fn === false) die("failed to create file MyTest.csv"); for ($i = 0; $i < 21374; ++$i) fwrite($fn, "$i,2018-03-23 09:44:29,4624,S-1-0-0|-|-|0x0|S-1-5-7|ANONYMOUS LOGON|NT AUTHORITY|0x1ca14760|3|NtLmSsp |NTLM|TESTCMP|{00000000-0000-0000-0000-000000000000}|-|NTLM V1|128|0x0|-|0.0.0.16|50192\r\n"); fclose($fn); By the way, if only '\n' is used for EOL, open works fine. ------------------------------------------------------------------------ [2019-04-20 11:46:31] alexeykirpa at gmail dot com Description: ------------ Initially I found problem when use popen() to process output of utility which produce CSV data (LogParser 2.2 if exactly). For 5MB stream usually 4..7 lines is bad. I redirect utility result to file and use fopen() - everything works correct. When I use "popen("type filename") - got same errors as with original utility output. Tested with php 7.2.12+ and with 7.3.x - same problem. NOTICE: with php 5.6.13 all works fine. Source file "MyTest.csv" which can be used to reproduce error you may download from url: http://www.sparc.tm/alex/mytest.rar Test script: --------------- <?php $fn = popen("type MyTest.csv", 'r'); // $fn = fopen("MyTest.csv", "r"); // this works! while (($data = fgetcsv($fn)) !== FALSE) { if (count($data) != 4) // CSV file always contain 4 columns { echo '[bad line] - ' . implode('; ', $data) . "\n"; continue; } } pclose($fn); ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77927&edit=1