3v4l.org

run code in 300+ PHP versions simultaneously
<?php $socket = fopen('php://memory', 'a+'); fwrite($socket, 'ab'); fseek($socket, 0); fwrite($socket, 'a'); var_dump(fgets($socket));
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
bool(false)
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 5.1.4 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.31, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
string(1) "b"
Output for 4.3.5 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.3
Warning: fopen(php://memory): failed to open stream: Success in /in/2haHa on line 3 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 4 Warning: fseek(): supplied argument is not a valid stream resource in /in/2haHa on line 5 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 7 Warning: fgets(): supplied argument is not a valid stream resource in /in/2haHa on line 9 bool(false)
Output for 4.3.3 - 4.3.4
Warning: fopen(php://memory): failed to open stream: Success in /in/2haHa on line 3 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 4 Warning: fseek(): supplied argument is not a valid stream resource in /in/2haHa on line 5 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 7 Warning: fgets(): supplied argument is not a valid stream resource in /in/2haHa on line 9 NULL
Output for 4.3.2
Warning: fopen(php://memory): failed to open stream: Inappropriate ioctl for device in /in/2haHa on line 3 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 4 Warning: fseek(): supplied argument is not a valid stream resource in /in/2haHa on line 5 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 7 Warning: fgets(): supplied argument is not a valid stream resource in /in/2haHa on line 9 NULL
Output for 4.3.0 - 4.3.1
Warning: fopen(php://memory) [http://www.php.net/function.fopen]: failed to create stream: Inappropriate ioctl for device in /in/2haHa on line 3 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 4 Warning: fseek(): supplied argument is not a valid stream resource in /in/2haHa on line 5 Warning: fwrite(): supplied argument is not a valid stream resource in /in/2haHa on line 7 Warning: fgets(): supplied argument is not a valid stream resource in /in/2haHa on line 9 NULL
preferences:
204.19 ms | 416 KiB | 5 Q