3v4l.org

run code in 300+ PHP versions simultaneously
<?php class File_stream { static $stream; protected $position; public $context; function stream_open ($path, $mode) { if ($mode != 'r' && $mode != 'rb') { return false; } $this->position = 0; return true; } function stream_read ($length) { fseek(self::$stream, $this->position); $bytes = fread(self::$stream, $length); $this->position += strlen($bytes); return $bytes; } function stream_tell () { return $this->position; } function stream_eof () { fseek(self::$stream, $this->position); return feof(self::$stream); } function stream_seek ($offset, $whence = SEEK_SET) { var_dump('seek', $this->position, $offset, $whence); fseek(self::$stream, $this->position); $result = fseek(self::$stream, $offset, $whence); $this->position = ftell(self::$stream); return $result === 0; } function stream_stat () { return fstat(self::$stream); } } stream_wrapper_register('request-file', 'File_stream'); $data = '0123456789abcdef'; $stream_direct = fopen('php://temp', 'w+b'); fwrite($stream_direct, $data); rewind($stream_direct); File_stream::$stream = $stream_direct; $stream = fopen('request-file://', 'r'); var_dump(fread($stream, 3)); var_dump(ftell($stream)); var_dump(fseek($stream, -1, SEEK_CUR)); var_dump(fread($stream, 2)); var_dump(ftell($stream)); fclose($stream);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.70.0190.00316.61
8.3.60.0070.00718.43
8.3.50.0110.00418.47
8.3.40.0100.00320.47
8.3.30.0000.01520.17
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0060.00326.16
8.2.190.0120.00316.75
8.2.180.0090.01216.88
8.2.170.0070.00718.86
8.2.160.0140.00022.96
8.2.150.0080.00025.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00417.63
8.2.110.0090.00022.25
8.2.100.0080.00417.84
8.2.90.0040.00418.03
8.2.80.0000.00819.23
8.2.70.0040.01379.33
8.2.60.0170.00379.33
8.2.50.0190.00079.33
8.2.40.0130.00379.33
8.2.30.0170.00079.33
8.2.20.0130.00379.33
8.2.10.0160.00079.33
8.2.00.0000.01979.33
8.1.280.0110.00725.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00019.57
8.1.230.0110.00421.04
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0100.00879.33
8.1.190.0120.00479.33
8.1.180.0110.00679.33
8.1.170.0100.00579.33
8.1.160.0090.00779.33
8.1.150.0140.00379.33
8.1.140.0090.00679.33
8.1.130.0130.00279.33
8.1.120.0120.00479.33
8.1.110.0120.00479.33
8.1.100.0180.00079.33
8.1.90.0080.00879.33
8.1.80.0130.00579.33
8.1.70.0080.00879.33
8.1.60.0150.00379.33
8.1.50.0120.00679.33
8.1.40.0110.00879.33
8.1.30.0140.00579.33
8.1.20.0180.00079.33
8.1.10.0150.00779.33
8.1.00.0130.00479.33
8.0.300.0000.00719.88
8.0.290.0060.01179.33
8.0.280.0140.00279.33
8.0.270.0100.00779.33
8.0.260.0080.00879.33
8.0.250.0170.00079.33
8.0.240.0120.00579.33
8.0.230.0100.01079.33
8.0.220.0140.00379.33
8.0.210.0160.00079.33
8.0.200.0060.01179.33
8.0.190.0060.01179.33
8.0.180.0060.00979.33
8.0.170.0150.00079.33
8.0.160.0140.00379.33
8.0.150.0050.01179.33
8.0.140.0120.00579.33
8.0.130.0130.00379.33
8.0.120.0070.00979.33
8.0.110.0110.00579.33
8.0.100.0170.00079.33
8.0.90.0100.00679.33
8.0.80.0110.00579.33
8.0.70.0110.00779.33
8.0.60.0110.00679.33
8.0.50.0070.01079.33
8.0.30.0160.00079.33
8.0.20.0160.00079.33
8.0.10.0120.00579.33

preferences:
27.32 ms | 404 KiB | 6 Q