Bug #76571 [NEW]: str_replace fails to replace string in special output buffered environment

From: roland at nextendweb dot com Operating system: PHP version: 7.2.7 Package: Output Control Bug Type: Bug Bug description:str_replace fails to replace string in special output buffered environment Description: ------------ http://sandbox.onlinephpfunctions.com/code/08eee50202cb2e8ce5b6e849aacb7c5bf37de4ba Test script: --------------- <?php class a { private static $bug = 'World'; public static function parse_output($buffer) { $buffer = str_replace('there', self::$bug, $buffer); self::$bug = 'What?'; return $buffer; } } ob_start('a::parse_output'); echo "Hello there"; $content = ob_get_contents(); ob_clean(); echo $content; ob_end_flush(); Expected result: ---------------- Hello World Actual result: -------------- Hello What? -- Edit bug report at https://bugs.php.net/bug.php?id=76571&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76571&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76571&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76571&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76571&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76571&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76571&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76571&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76571&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76571&r=support Expected behavior: https://bugs.php.net/fix.php?id=76571&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76571&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76571&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76571&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76571&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76571&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76571&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76571&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76571&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76571&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76571&r=mysqlcfg