3v4l.org

run code in 300+ PHP versions simultaneously
<?php $temp = tmpfile(); fwrite($temp, "writing to tempfile"); fseek($temp, 0); echo fread($temp, 1024); fclose($temp); // this removes the file fseek($temp, 0);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
writing to tempfile Fatal error: Uncaught TypeError: fseek(): supplied resource is not a valid stream resource in /in/LXfrM:7 Stack trace: #0 /in/LXfrM(7): fseek(Resource id #4, 0) #1 {main} thrown in /in/LXfrM on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
writing to tempfile Warning: fseek(): supplied resource is not a valid stream resource in /in/LXfrM on line 7
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
writing to tempfile Warning: fseek(): 4 is not a valid stream resource in /in/LXfrM on line 7
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
writing to tempfile Warning: fseek(): 1 is not a valid stream resource in /in/LXfrM on line 7

preferences:
302.55 ms | 402 KiB | 456 Q