3v4l.org

run code in 300+ PHP versions simultaneously
<?php class VariableStream { var $position; var $varname; function stream_open($path, $mode, $options, &$opened_path) { $url = parse_url($path); $this->varname = $url["host"]; $this->position = 0; return true; } function stream_read($count) { $ret = substr($GLOBALS[$this->varname], $this->position, $count); $this->position += strlen($ret); return $ret; } function stream_write($data) { $left = substr($GLOBALS[$this->varname], 0, $this->position); $right = substr($GLOBALS[$this->varname], $this->position + strlen($data)); $GLOBALS[$this->varname] = $left . $data . $right; $this->position += strlen($data); return strlen($data); } function stream_tell() { return $this->position; } function stream_eof() { return $this->position >= strlen($GLOBALS[$this->varname]); } function stream_seek($offset, $whence) { switch ($whence) { case SEEK_SET: if ($offset < strlen($GLOBALS[$this->varname]) && $offset >= 0) { $this->position = $offset; return true; } else { return false; } break; case SEEK_CUR: if ($offset >= 0) { $this->position += $offset; return true; } else { return false; } break; case SEEK_END: if (strlen($GLOBALS[$this->varname]) + $offset >= 0) { $this->position = strlen($GLOBALS[$this->varname]) + $offset; return true; } else { return false; } break; default: return false; } } function stream_metadata($path, $option, $var) { if($option == STREAM_META_TOUCH) { $url = parse_url($path); $varname = $url["host"]; if(!isset($GLOBALS[$varname])) { $GLOBALS[$varname] = ''; } return true; } return false; } } stream_wrapper_register("var", "VariableStream") or die("Failed to register protocol"); $myvar = ""; $fp = fopen("var://myvar", "r+"); fwrite($fp, "line1\n"); fwrite($fp, "line2\n"); fwrite($fp, "line3\n"); rewind($fp); while (!feof($fp)) { echo fgets($fp); } fclose($fp); var_dump($myvar);

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)
8.3.60.0210.00018.68
8.3.50.0110.00522.06
8.3.40.0120.00318.65
8.3.30.0090.00619.21
8.3.20.0000.00820.34
8.3.10.0040.00421.80
8.3.00.0080.00022.46
8.2.180.0070.01516.88
8.2.170.0110.00422.96
8.2.160.0170.00318.91
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00417.63
8.2.110.0060.00320.47
8.2.100.0080.00317.84
8.2.90.0000.00819.35
8.2.80.0000.00818.05
8.2.70.0030.00617.50
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0070.00018.16
8.2.20.0070.00017.80
8.2.10.0040.00417.68
8.2.00.0040.00417.71
8.1.280.0090.00625.92
8.1.270.0040.00422.27
8.1.260.0040.00426.35
8.1.250.0090.00028.09
8.1.240.0060.00322.23
8.1.230.0000.01219.19
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0040.00717.60
8.1.190.0040.00417.53
8.1.180.0060.00318.10
8.1.170.0000.00818.71
8.1.160.0040.00422.09
8.1.150.0080.00018.71
8.1.140.0040.00417.41
8.1.130.0000.00717.80
8.1.120.0070.00017.41
8.1.110.0030.00517.51
8.1.100.0040.00417.43
8.1.90.0000.00717.50
8.1.80.0050.00317.54
8.1.70.0070.00017.41
8.1.60.0030.00717.54
8.1.50.0030.00617.48
8.1.40.0060.00317.46
8.1.30.0040.00417.64
8.1.20.0040.00417.65
8.1.10.0040.00417.52
8.1.00.0040.00417.55
8.0.300.0000.00718.77
8.0.290.0030.00617.16
8.0.280.0030.00318.60
8.0.270.0000.00717.41
8.0.260.0030.00316.87
8.0.250.0030.00316.98
8.0.240.0070.00016.97
8.0.230.0000.00717.07
8.0.220.0000.00716.98
8.0.210.0040.00416.93
8.0.200.0030.00317.05
8.0.190.0040.00417.11
8.0.180.0000.00717.05
8.0.170.0050.00216.93
8.0.160.0000.00717.07
8.0.150.0040.00416.85
8.0.140.0000.00716.91
8.0.130.0040.00413.51
8.0.120.0000.00816.92
8.0.110.0040.00416.91
8.0.100.0040.00417.02
8.0.90.0070.00017.03
8.0.80.0100.01017.07
8.0.70.0000.00716.97
8.0.60.0000.00817.01
8.0.50.0040.00417.08
8.0.30.0120.00817.06
8.0.20.0080.01117.42
8.0.10.0000.00816.97
8.0.00.0070.01516.91
7.4.330.0030.00315.15
7.4.320.0000.00616.63
7.4.300.0000.00616.64
7.4.290.0070.00016.60
7.4.280.0000.00816.47
7.4.270.0020.00516.65
7.4.260.0000.00716.66
7.4.250.0030.00516.45
7.4.240.0020.00516.64
7.4.230.0000.00716.72
7.4.220.0110.00616.68
7.4.210.0100.00816.62
7.4.200.0000.00716.73
7.4.190.0030.00516.64
7.4.160.0100.00616.80
7.4.150.0100.00717.40
7.4.140.0060.01517.86
7.4.130.0150.00616.63
7.4.120.0120.00916.63
7.4.110.0150.01016.71
7.4.100.0120.00916.57
7.4.90.0000.01716.45
7.4.80.0110.00819.39
7.4.70.0120.00616.71
7.4.60.0110.00616.65
7.4.50.0080.00016.36
7.4.40.0090.00622.77
7.4.30.0000.01716.69
7.4.00.0060.00815.20
7.3.330.0060.00013.39
7.3.320.0000.00613.43
7.3.310.0030.00316.50
7.3.300.0040.00416.46
7.3.290.0090.00916.55
7.3.280.0080.00916.47
7.3.270.0110.00717.40
7.3.260.0130.01016.49
7.3.250.0140.00616.45
7.3.240.0100.01016.54
7.3.230.0070.01016.63
7.3.210.0130.01016.32
7.3.200.0120.00619.39
7.3.190.0110.00916.46
7.3.180.0110.00816.66
7.3.170.0090.00916.54
7.3.160.0170.00016.65
7.3.120.0110.00614.72
7.3.110.0100.00714.73
7.3.100.0000.01414.90
7.3.90.0040.01214.71
7.3.80.0040.01114.77
7.3.70.0160.00014.93
7.3.60.0030.01014.96
7.3.50.0060.00615.06
7.3.40.0090.00614.81
7.3.30.0100.00714.97
7.3.20.0060.00916.73
7.3.10.0120.00416.14
7.3.00.0090.00616.36
7.2.330.0040.01516.65
7.2.320.0150.01016.83
7.2.310.0060.01016.63
7.2.300.0060.01616.91
7.2.290.0030.01616.64
7.2.250.0130.00615.11
7.2.240.0130.00615.36
7.2.230.0150.00015.44
7.2.220.0070.01015.11
7.2.210.0030.01815.20
7.2.200.0030.01614.97
7.2.190.0030.01015.19
7.2.180.0060.00614.98
7.2.170.0040.01115.22
7.2.130.0170.00316.77
7.2.120.0120.00616.19
7.2.110.0170.00716.51
7.2.100.0080.00816.09
7.2.90.0050.01816.35
7.2.80.0140.00416.48
7.2.70.0060.01316.96
7.2.60.0070.01216.72
7.2.50.0100.00316.21
7.2.40.0150.01017.05
7.2.30.0070.01116.55
7.2.20.0070.01516.53
7.2.10.0160.00316.28
7.2.00.0040.01216.70
7.1.330.0030.01215.87
7.1.320.0040.00715.64
7.1.310.0080.01116.11
7.1.300.0060.00915.84
7.1.290.0000.01815.77
7.1.280.0030.00615.95
7.1.270.0070.00715.76
7.1.260.0090.00015.93
7.1.250.0190.00715.48
7.1.200.0030.01015.80
7.1.70.0000.00817.32
7.1.60.0070.01119.82
7.1.50.0070.01716.96
7.1.00.0000.07722.30
7.0.200.0080.00316.79
7.0.140.0100.06722.00
7.0.80.0030.05020.21
7.0.70.0130.06719.93
7.0.60.0030.06020.04
7.0.50.0030.06020.44
7.0.40.0070.05320.13
7.0.30.0130.07720.05
7.0.20.0130.04720.05
7.0.10.0100.05019.94
7.0.00.0030.05320.02
5.6.230.0130.05020.64
5.6.220.0070.04720.60
5.6.210.0100.07720.79
5.6.200.0030.06721.16
5.6.190.0130.04321.15
5.6.180.0070.04021.05
5.6.170.0100.07320.98
5.6.160.0100.08321.05
5.6.150.0030.08320.93
5.6.140.0030.08321.09
5.6.130.0030.07021.02
5.6.120.0000.09021.05
5.6.110.0070.05320.96
5.6.100.0070.04321.08
5.6.90.0070.04021.04
5.6.80.0070.04720.48
5.6.70.0100.07720.50
5.6.60.0030.05720.47
5.6.50.0030.08320.34
5.6.40.0070.07720.48
5.6.30.0030.05020.43
5.6.20.0130.06720.42
5.6.10.0070.08320.30
5.6.00.0070.06020.39
5.5.370.0030.04020.58
5.5.360.0030.04320.41
5.5.350.0070.05720.36
5.5.340.0100.07320.78
5.5.330.0230.06320.67
5.5.320.0100.04020.82
5.5.310.0070.04320.75
5.5.300.0000.05320.91
5.5.290.0000.08020.85
5.5.280.0070.04020.77
5.5.270.0170.04320.78
5.5.260.0130.04320.90
5.5.250.0070.08020.59
5.5.240.0000.05320.16
5.5.230.0070.04720.29
5.5.220.0070.04320.19
5.5.210.0000.07320.20
5.5.200.0100.07320.15
5.5.190.0100.06020.24
5.5.180.0070.05020.16
5.5.160.0030.04320.17
5.5.150.0100.07720.17
5.5.140.0100.07720.27
5.5.130.0100.08020.15
5.5.120.0130.07020.25
5.5.110.0070.06320.26
5.5.100.0000.07720.19
5.5.90.0100.07720.09
5.5.80.0000.07020.13
5.5.70.0070.06320.16
5.5.60.0200.05319.98
5.5.50.0070.05720.08
5.5.40.0130.07320.06
5.5.30.0170.06720.07
5.5.20.0030.08319.97
5.5.10.0100.08020.04
5.5.00.0070.07720.14
5.4.450.0030.05719.54
5.4.440.0100.03719.18
5.4.430.0070.07719.36
5.4.420.0000.08719.22
5.4.410.0100.04319.23
5.4.400.0030.04319.13
5.4.390.0000.05719.23
5.4.380.0130.06719.05
5.4.370.0030.08318.88
5.4.360.0170.06719.15
5.4.350.0170.04319.23
5.4.340.0100.07718.95
5.4.320.0030.07318.95
5.4.310.0130.07318.88
5.4.300.0030.08318.84
5.4.290.0170.06719.03
5.4.280.0000.08019.02
5.4.270.0100.04718.94
5.4.260.0130.07018.85
5.4.250.0070.07319.22
5.4.240.0130.06718.89
5.4.230.0100.07719.13
5.4.220.0000.08019.19
5.4.210.0070.07319.15
5.4.200.0030.08019.03
5.4.190.0030.08018.84
5.4.180.0130.07318.87
5.4.170.0030.05019.13
5.4.160.0130.06319.10
5.4.150.0030.08019.21
5.4.140.0100.06016.43
5.4.130.0100.07016.42
5.4.120.0070.04016.50
5.4.110.0030.08016.49
5.4.100.0130.04716.29
5.4.90.0030.07016.54
5.4.80.0030.05016.34
5.4.70.0030.04716.40
5.4.60.0130.03716.31
5.4.50.0070.06016.46
5.4.40.0030.07016.46
5.4.30.0070.06016.48
5.4.20.0070.07316.27
5.4.10.0130.07016.39
5.4.00.0070.07315.66
5.3.290.0000.04714.82
5.3.280.0170.06314.68
5.3.270.0100.07314.75
5.3.260.0130.06714.70
5.3.250.0100.06014.68
5.3.240.0070.07314.73
5.3.230.0100.07314.59
5.3.220.0100.04714.60
5.3.210.0030.04014.69
5.3.200.0070.05014.71
5.3.190.0000.05714.57
5.3.180.0100.06714.65
5.3.170.0070.07014.54
5.3.160.0100.06714.73
5.3.150.0070.08014.68
5.3.140.0070.05014.55
5.3.130.0000.04714.60
5.3.120.0030.08014.50
5.3.110.0030.07314.67
5.3.100.0030.05313.99
5.3.90.0070.07013.99
5.3.80.0070.07014.18
5.3.70.0000.04713.98
5.3.60.0030.04014.10
5.3.50.0030.06314.00
5.3.40.0070.07013.90
5.3.30.0130.03714.00
5.3.20.0030.07313.71
5.3.10.0000.04313.73
5.3.00.0070.07013.57
5.2.170.0100.03711.81
5.2.160.0070.06011.81
5.2.150.0130.05711.81
5.2.140.0100.06011.81
5.2.130.0030.06011.81
5.2.120.0100.05311.81
5.2.110.0030.06011.81
5.2.100.0100.05711.81
5.2.90.0070.06011.81
5.2.80.0070.06011.81
5.2.70.0070.06011.81
5.2.60.0070.06311.81
5.2.50.0070.03311.81
5.2.40.0070.05711.81
5.2.30.0070.06311.81
5.2.20.0100.04011.81
5.2.10.0130.04311.81
5.2.00.0100.05311.81
5.1.60.0100.03011.81
5.1.50.0070.04711.81
5.1.40.0030.05711.81
5.1.30.0100.03711.81
5.1.20.0030.03711.81
5.1.10.0030.05311.81
5.1.00.0070.04011.81
5.0.50.0000.04311.81
5.0.40.0000.04711.81
5.0.30.0030.06711.81
5.0.20.0000.04711.81
5.0.10.0070.04311.81
5.0.00.0000.05711.81
4.4.90.0000.02311.81
4.4.80.0030.03011.81
4.4.70.0030.03311.81
4.4.60.0030.02311.81
4.4.50.0070.03311.81
4.4.40.0100.04311.81
4.4.30.0000.02011.81
4.4.20.0030.03311.81
4.4.10.0070.03311.81
4.4.00.0030.03311.81
4.3.110.0030.01311.81
4.3.100.0000.02311.81
4.3.90.0000.02711.81
4.3.80.0000.05711.81
4.3.70.0000.03711.81
4.3.60.0030.03711.81
4.3.50.0070.03311.81
4.3.40.0000.05311.81
4.3.30.0030.03711.81
4.3.20.0070.02011.81
4.3.10.0000.03711.81
4.3.00.0000.03011.81

preferences:
45.57 ms | 400 KiB | 5 Q