Bug #67683 [Opn->Fbk]: var_dump() makes the following codes execute twice

Edit report at https://bugs.php.net/bug.php?id=67683&edit=1 ID: 67683 Updated by: requinix@php.net Reported by: enadiz at foxmail dot com Summary: var_dump() makes the following codes execute twice -Status: Open +Status: Feedback Type: Bug Package: Output Control Operating System: Linux 3.13.0-24-generic #Ubuntu PHP Version: 5.5.15 Block user comment: N Private report: N New Comment: If you're only seeing the "int(0) test" once then the script is only executing once. It may have executed previously, like if you forgot that test.txt is being appended to, or the browser may have executed it twice (Chrome sometimes does this), but PHP itself is not doing it. What if you dump $_SERVER["REQUEST_TIME_FLOAT"] to the file? Does it put the same number or two different numbers? What do your server access logs show? Previous Comments: ------------------------------------------------------------------------ [2014-07-25 11:11:59] enadiz at foxmail dot com Description: ------------ The example A runs correctly .It's output on browse is like this : int(0) test and the output in file "test.txt" is : 1406285601 The example B doesn't runs correctly .It's output on browse is : int(0) test which with no problem but the output in file "test.txt" is like that : 1406285917 1406285919 it means that all the codes executed twice except the line contains "echo".I try replaced "file_put_contents " to other operation likes mysql's insert ,it still executed twice and the database inserted two records; Test script: --------------- <?php //example A sleep(2); echo 'test'; file_put_contents("test.txt",time()."\r\n", FILE_APPEND); ?> <?php // example B which some codes execute twice var_dump(0); sleep(2); echo 'test'; file_put_contents("test.txt",time()."\r\n", FILE_APPEND); ?> ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=67683&edit=1