Bug #75597 [NEW]: CURLOPT_POSTFIELDS large string incorrect send

From: icorrea at cristalmedia dot net Operating system: Windows PHP version: 7.2.0 Package: cURL related Bug Type: Bug Bug description:CURLOPT_POSTFIELDS large string incorrect send Description: ------------ --- From manual page: http://www.php.net/function.curl-setopt --- PHP 7.2.0 and PHP 7.1 When send a large string, for example a base64 encoded image, by POST and set the parameter using CURLOPT_POSTFIELDS, cURL cut the string and send a repeted string to the original length of the string. Example: $string = array(0 => "ABCDEFGHIJKLMN.."); // test with a string > 20000 length .. curl_setopt($s, CURLOPT_POST, true); curl_setopt($s, CURLOPT_POSTFIELDS, $string ); ... then on other side the server recive: "ABCDEFABCDEFABCD.." cuting the string in 16K size and repeated any times to complete the original size. Test the same code with PHP5 and this bug is not present. Test script: --------------- $string = array(0 => "ABCDEFGHIJKLMN.."); // test with a string > 20000 length .. curl_setopt($s, CURLOPT_POST, true); curl_setopt($s, CURLOPT_POSTFIELDS, $string ); ... then on other side the server recive: "ABCDEFABCDEFABCD.." -- Edit bug report at https://bugs.php.net/bug.php?id=75597&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75597&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75597&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75597&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75597&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75597&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75597&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75597&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75597&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75597&r=support Expected behavior: https://bugs.php.net/fix.php?id=75597&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75597&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75597&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75597&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75597&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75597&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75597&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75597&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75597&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75597&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75597&r=mysqlcfg