3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); phpversion() >= "5.6.0" or die(); $a = 1; unset($a); $g = array_filter($GLOBALS, function($k) { return !in_array($k, ["g", "HTTP_RAW_POST_DATA", "GLOBALS", "_FILES", "_REQUEST", "_SESSION", "_ENV", "_SERVER", "_GET", "_POST", "_COOKIE", "argv", "argc"]); }, ARRAY_FILTER_USE_KEY); var_dump(count($g)); var_dump($g); var_dump(array_keys($g)); var_dump($g['a']);

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)
7.3.120.0070.00314.86
7.3.110.0090.00614.80
7.3.100.0070.00414.70
7.3.90.0060.00615.14
7.3.80.0040.01114.88
7.3.70.0000.01014.69
7.3.60.0070.00714.89
7.3.50.0070.00714.73
7.3.40.0030.01414.85
7.3.30.0000.01315.04
7.3.20.0040.01116.39
7.3.10.0110.00416.75
7.3.00.0070.00716.46
7.2.240.0080.00315.21
7.2.230.0060.00614.77
7.2.220.0110.00414.95
7.2.210.0070.00715.02
7.2.200.0100.00315.18
7.2.190.0070.00714.99
7.2.180.0060.00914.91
7.2.170.0130.00015.02
7.2.160.0100.00614.91
7.2.150.0160.00017.05
7.2.140.0090.00616.84
7.2.130.0050.01316.70
7.2.120.0040.01016.68
7.2.110.0080.01016.65
7.2.100.0130.00716.65
7.2.90.0040.01116.83
7.2.80.0080.00916.69
7.2.70.0070.00816.75
7.2.60.0100.00716.89
7.2.50.0100.01016.78
7.2.40.0080.01016.80
7.2.30.0050.01016.77
7.2.20.0100.00816.74
7.2.10.0070.00516.62
7.2.00.0110.00817.53
7.1.330.0090.00315.69
7.1.320.0050.00815.91
7.1.310.0070.00415.95
7.1.300.0030.00615.78
7.1.290.0090.00315.65
7.1.280.0080.00815.84
7.1.270.0090.00615.78
7.1.260.0090.00615.50
7.1.250.0080.00815.73
7.1.100.0080.00318.08
7.1.70.0070.00317.29
7.1.60.0000.02419.36
7.1.50.0000.01616.60
7.1.00.0030.07722.37
7.0.200.0070.00716.82
7.0.60.0000.07019.96
7.0.50.0030.04017.97
7.0.40.0070.04020.40
7.0.30.0370.07020.24
7.0.20.0270.06320.09
7.0.10.0070.04020.21
7.0.00.0130.04720.10
5.6.280.0030.03721.10
5.6.210.0100.07020.68
5.6.200.0000.04718.18
5.6.190.0070.08720.33
5.6.180.0270.04320.55
5.6.170.0270.08320.56
5.6.160.0200.04720.50
5.6.150.0130.05318.19
5.6.140.0000.04318.15
5.6.130.0100.07018.24
5.6.120.0100.07021.05
5.6.110.0000.09720.89
5.6.100.0130.06320.89
5.6.90.0130.06720.98
5.6.80.0130.07720.50
5.5.350.0100.07020.41
5.5.340.0000.05718.03
5.5.330.0070.08320.43
5.5.320.0470.05020.28
5.5.310.0270.07020.40
5.5.300.0170.06018.02
5.5.290.0130.07318.08
5.5.280.0000.04720.89
5.5.270.0070.04720.96
5.5.260.0100.07720.88
5.5.250.0030.06320.66
5.5.240.0130.03020.19
5.4.450.0130.06719.35
5.4.440.0100.06719.57
5.4.430.0000.06019.33
5.4.420.0100.04719.38
5.4.410.0130.07719.44
5.4.400.0000.04019.15
5.4.390.0030.04018.85
5.4.380.0070.04018.92
5.4.370.0000.04018.92
5.4.360.0000.04319.24
5.4.350.0000.05319.16
5.4.340.0000.04719.24
5.4.320.0030.03719.14
5.4.310.0070.03319.02
5.4.300.0030.03719.14
5.4.290.0000.04019.12
5.4.280.0030.03719.00
5.4.270.0000.04319.24
5.4.260.0070.03318.87
5.4.250.0070.03318.87
5.4.240.0030.04019.14
5.4.230.0030.03719.07
5.4.220.0030.03719.14
5.4.210.0030.03719.23
5.4.200.0030.04019.21
5.4.190.0070.03318.86
5.4.180.0000.04018.96
5.4.170.0000.04018.84
5.4.160.0030.03719.23
5.4.150.0030.03718.83
5.4.140.0100.02716.33
5.4.130.0100.06016.28
5.4.120.0030.06016.31
5.4.110.0070.03716.42
5.4.100.0000.04016.67
5.4.90.0070.07316.38
5.4.80.0030.07716.65
5.4.70.0070.07016.36
5.4.60.0030.07316.36
5.4.50.0100.06716.44
5.4.40.0030.06316.40
5.4.30.0130.07016.61
5.4.20.0100.07316.37
5.4.10.0030.06716.29
5.4.00.0070.07315.94
5.3.290.0130.03014.83
5.3.280.0070.03714.74
5.3.270.0030.04014.66
5.3.260.0000.04314.75
5.3.250.0000.03714.66
5.3.240.0100.05014.61
5.3.230.0030.04014.74
5.3.220.0030.07714.61
5.3.210.0030.05314.56
5.3.200.0070.05014.71
5.3.190.0130.04714.61
5.3.180.0070.05014.59
5.3.170.0030.04714.57
5.3.160.0130.07314.72
5.3.150.0130.03014.58
5.3.140.0200.03714.50
5.3.130.0100.04714.55
5.3.120.0000.05314.56
5.3.110.0100.07714.55
5.3.100.0070.06714.11
5.3.90.0030.07714.08
5.3.80.0000.06714.18
5.3.70.0230.05013.96
5.3.60.0100.06313.98
5.3.50.0200.05314.11
5.3.40.0030.08313.95
5.3.30.0100.06314.05
5.3.20.0070.06013.74
5.3.10.0070.05713.55
5.3.00.0030.04013.80
5.2.170.0030.03711.05
5.2.160.0100.05310.97
5.2.150.0070.06711.30
5.2.140.0070.05711.32
5.2.130.0100.05311.05
5.2.120.0130.05710.96
5.2.110.0030.03710.92
5.2.100.0030.07011.08
5.2.90.0030.05710.98
5.2.80.0030.07011.04
5.2.70.0070.04011.03
5.2.60.0000.03311.01
5.2.50.0030.03011.17
5.2.40.0030.03310.87
5.2.30.0000.04310.90
5.2.20.0030.03310.92
5.2.10.0070.06010.89
5.2.00.0070.05710.72
5.1.60.0000.0439.90
5.1.50.0000.0309.97
5.1.40.0100.0479.98
5.1.30.0000.07010.29
5.1.20.0070.05310.43
5.1.10.0100.03710.11
5.1.00.0070.05710.11
5.0.50.0070.0408.39
5.0.40.0170.0138.41
5.0.30.0000.0378.21
5.0.20.0000.0338.12
5.0.10.0000.0238.23
5.0.00.0000.0338.30
4.4.90.0130.0277.52
4.4.80.0000.0207.52
4.4.70.0000.0237.52
4.4.60.0030.0177.52
4.4.50.0000.0307.52
4.4.40.0000.0577.52
4.4.30.0030.0377.52
4.4.20.0030.0377.52
4.4.10.0070.0337.52
4.4.00.0000.0577.52
4.3.110.0000.0307.52
4.3.100.0000.0307.52
4.3.90.0000.0207.52
4.3.80.0100.0237.52
4.3.70.0030.0277.52
4.3.60.0000.0177.52
4.3.50.0130.0077.52
4.3.40.0000.0277.52
4.3.30.0030.0237.52
4.3.20.0000.0377.52
4.3.10.0030.0177.52
4.3.00.0030.0137.52

preferences:
46.59 ms | 400 KiB | 5 Q