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run code in 300+ PHP versions simultaneously
<?php $var11 = '12345'; $var12 = '22b'; $var13 = '12345x'; $var14 = '22'; $var15 = 123456; $var16 = 22; say("string comparisons:"); comparevar('var11 and var12', $var11, $var12); comparevar('var12 and var11', $var12, $var11); say("one numeric string, one string, make string comparisons:"); comparevar('var13 and var14', $var13, $var14); comparevar('var14 and var13', $var14, $var13); say("two numeric strings make numeric comparisons:"); comparevar('var11 and var14', $var11, $var14); comparevar('var14 and var11', $var14, $var11); say("two strings make string comparisons:"); comparevar('var12 and var13', $var12, $var13); comparevar('var13 and var12', $var13, $var12); say("two numbers make numeric comparisons:"); comparevar('var15 and var16', $var15, $var16); comparevar('var16 and var15', $var16, $var15); say("one numeric string, one number, make numeric comparisons:"); comparevar('var11 and var14', $var11, $var14); comparevar('var14 and var11', $var14, $var11); comparevar('var15 and var16', $var15, $var16); comparevar('var16 and var15', $var16, $var15); function comparevar($tag, $arg1, $arg2) { echo("$tag: "); if ($arg1 === $arg2) { say("$arg1 === $arg2"); } if ($arg1 == $arg2) { say("$arg1 == $arg2"); } if ($arg1 < $arg2) { say("$arg1 < $arg2"); } if ($arg1 > $arg2) { say("$arg1 > $arg2"); } } function say($str) { echo $str, "\n"; }

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)
8.3.40.0120.00618.63
8.3.30.0090.00619.08
8.3.20.0040.00420.20
8.3.10.0040.00423.38
8.3.00.0030.00519.25
8.2.170.0150.00022.96
8.2.160.0150.00020.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00920.91
8.2.110.0060.00320.35
8.2.100.0110.00018.15
8.2.90.0030.00619.21
8.2.80.0030.00617.97
8.2.70.0080.00417.38
8.2.60.0040.00418.03
8.2.50.0050.00318.07
8.2.40.0030.00618.09
8.2.30.0070.00017.98
8.2.20.0000.00817.82
8.2.10.0070.00018.14
8.2.00.0000.00817.63
8.1.270.0080.00023.84
8.1.260.0050.00226.35
8.1.250.0000.00728.09
8.1.240.0030.00622.15
8.1.230.0070.00319.15
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0090.00017.35
8.1.190.0080.00017.25
8.1.180.0090.00018.10
8.1.170.0080.00018.61
8.1.160.0080.00022.09
8.1.150.0060.00318.93
8.1.140.0060.00317.49
8.1.130.0030.00317.87
8.1.120.0000.00717.50
8.1.110.0050.00317.56
8.1.100.0000.00717.39
8.1.90.0000.00817.40
8.1.80.0020.00517.47
8.1.70.0030.00317.50
8.1.60.0000.00917.53
8.1.50.0040.00417.52
8.1.40.0050.00317.43
8.1.30.0030.00517.66
8.1.20.0060.00317.62
8.1.10.0000.00717.59
8.1.00.0050.00317.35
8.0.300.0080.00018.77
8.0.290.0000.00716.88
8.0.280.0030.00618.49
8.0.270.0070.00017.30
8.0.260.0050.00317.36
8.0.250.0000.00716.89
8.0.240.0040.00416.98
8.0.230.0070.00017.02
8.0.220.0070.00016.96
8.0.210.0000.00716.90
8.0.200.0030.00316.88
8.0.190.0030.00516.97
8.0.180.0040.00416.92
8.0.170.0030.00616.99
8.0.160.0000.00716.83
8.0.150.0030.00316.81
8.0.140.0000.00816.80
8.0.130.0060.00013.32
8.0.120.0080.00016.73
8.0.110.0040.00416.96
8.0.100.0040.00416.80
8.0.90.0040.00416.92
8.0.80.0030.01316.98
8.0.70.0050.00316.98
8.0.60.0040.00416.82
8.0.50.0070.00016.73
8.0.30.0120.01317.34
8.0.20.0090.01117.40
8.0.10.0000.00717.05
8.0.00.0080.01016.99
7.4.330.0000.00515.09
7.4.320.0030.00316.54
7.4.300.0030.00316.44
7.4.290.0050.00316.63
7.4.280.0000.00716.68
7.4.270.0000.00716.69
7.4.260.0000.00816.48
7.4.250.0030.00516.51
7.4.240.0030.00416.56
7.4.230.0070.00016.35
7.4.220.0140.00416.56
7.4.210.0030.01216.59
7.4.200.0000.00716.65
7.4.160.0110.00516.61
7.4.150.0120.00917.40
7.4.140.0100.00717.86
7.4.130.0080.01016.58
7.4.120.0070.01116.53
7.4.110.0100.00716.45
7.4.100.0110.00716.41
7.4.90.0140.00416.64
7.4.80.0120.00619.39
7.4.70.0030.01316.50
7.4.60.0140.00316.54
7.4.50.0030.00616.57
7.4.40.0100.00716.46
7.4.30.0070.01016.53
7.4.00.0030.01014.84
7.3.330.0000.00613.41
7.3.320.0050.00013.43
7.3.310.0030.00316.36
7.3.300.0000.00716.37
7.3.290.0070.00716.42
7.3.280.0090.00616.38
7.3.270.0150.00317.40
7.3.260.0190.00316.48
7.3.250.0090.00816.36
7.3.240.0110.00716.41
7.3.230.0070.01116.43
7.3.210.0110.01216.63
7.3.200.0080.00819.39
7.3.190.0060.01016.70
7.3.180.0080.00816.69
7.3.170.0120.00316.52
7.3.160.0130.00316.32
7.3.10.0030.00916.40
7.3.00.0070.00716.64
7.2.330.0000.01716.64
7.2.320.0030.01316.74
7.2.310.0030.01316.64
7.2.300.0080.00816.61
7.2.290.0080.00816.74
7.2.130.0030.01016.68
7.2.120.0030.01016.70
7.2.110.0030.00716.95
7.2.100.0040.00716.97
7.2.90.0090.00416.92
7.2.80.0080.00417.04
7.2.70.0100.00016.97
7.2.60.0070.01016.80
7.2.50.0080.00416.88
7.2.40.0000.01116.86
7.2.30.0060.00616.79
7.2.20.0040.00716.57
7.2.10.0070.00716.90
7.2.00.0110.00016.67
7.1.250.0040.00415.55
7.1.70.0000.00717.02
7.1.60.0140.01119.46
7.1.50.0090.01317.06
7.1.00.0030.07722.31
7.0.200.0040.00416.69
7.0.140.0030.07722.10
7.0.60.0030.04019.96
7.0.50.0100.07017.89
7.0.40.0100.08320.23
7.0.30.0230.06020.21
7.0.20.0200.07320.26
7.0.10.0130.08020.22
7.0.00.0100.06720.08
5.6.280.0100.06721.09
5.6.210.0000.04320.55
5.6.200.0170.07318.20
5.6.190.0100.08020.65
5.6.180.0400.06720.41
5.6.170.0230.05020.62
5.6.160.0070.08320.55
5.6.150.0070.07318.14
5.6.140.0100.03318.18
5.6.130.0170.06718.21
5.6.120.0130.08321.00
5.6.110.0030.04321.02
5.6.100.0130.07721.00
5.6.90.0070.09021.10
5.6.80.0000.09020.44
5.6.70.3370.03320.45
5.5.350.0230.07020.42
5.5.340.0000.07018.08
5.5.330.0130.07320.13
5.5.320.0400.06320.36
5.5.310.0230.05720.35
5.5.300.0070.07317.94
5.5.290.0030.05017.93
5.5.280.0000.07720.89
5.5.270.0030.06020.89
5.5.260.0100.05720.88
5.5.250.0070.06720.60
5.5.240.0230.07320.23
5.4.450.0200.05019.20
5.4.440.0170.05319.20
5.4.430.0230.03719.41
5.4.420.0170.04019.55
5.4.410.0300.05019.36
5.4.400.0030.04019.25
5.4.390.0130.06319.24
5.4.380.0300.06318.83
5.4.370.0300.05318.54
5.4.360.0330.05318.46
5.4.350.0300.05718.52
5.4.340.0400.06018.48
5.4.320.0050.03812.52
5.4.310.0090.03712.52
5.4.300.0050.03712.52
5.4.290.0050.03912.52
5.4.280.0090.03612.41
5.4.270.0050.03712.42
5.4.260.0070.03812.41
5.4.250.0090.03312.41
5.4.240.0040.03812.41
5.4.230.0060.03712.41
5.4.220.0030.04012.41
5.4.210.0100.04012.41
5.4.200.0020.04112.41
5.4.190.0070.03412.41
5.4.180.0110.03512.40
5.4.170.0060.03512.41
5.4.160.0060.03812.41
5.4.150.0060.03512.40
5.4.140.0050.04312.08
5.4.130.0060.03712.07
5.4.120.0110.03412.03
5.4.110.0050.03612.03
5.4.100.0070.03412.03
5.4.90.0110.04412.03
5.4.80.0050.03812.03
5.4.70.0050.03612.02
5.4.60.0030.03712.02
5.4.50.0050.03712.03
5.4.40.0070.03412.01
5.4.30.0030.03812.01
5.4.20.0100.03912.01
5.4.10.0100.03612.01
5.4.00.0060.03811.50
5.3.290.0070.04412.80
5.3.280.0090.03712.71
5.3.270.0070.04212.72
5.3.260.0050.04012.72
5.3.250.0120.03912.72
5.3.240.0060.03712.72
5.3.230.0100.03912.71
5.3.220.0080.03812.68
5.3.210.0080.03612.68
5.3.200.0080.03812.68
5.3.190.0050.03912.68
5.3.180.0070.03712.67
5.3.170.0070.03712.67
5.3.160.0110.03612.67
5.3.150.0070.04112.67
5.3.140.0080.03912.66
5.3.130.0060.03912.66
5.3.120.0040.04412.66
5.3.110.0050.04112.66
5.3.100.0060.03912.13
5.3.90.0040.03912.11
5.3.80.0050.03812.11
5.3.70.0040.03812.11
5.3.60.0060.04012.09
5.3.50.0060.03812.05
5.3.40.0050.03712.05
5.3.30.0050.03512.00
5.3.20.0070.04811.78
5.3.10.0090.03311.75
5.3.00.0030.04011.74
5.2.170.0070.0299.23
5.2.160.0090.0259.24
5.2.150.0040.0379.24
5.2.140.0070.0289.23
5.2.130.0060.0299.19
5.2.120.0130.0249.19
5.2.110.0070.0289.20
5.2.100.0090.0329.20
5.2.90.0030.0319.20
5.2.80.0050.0339.20
5.2.70.0040.0389.19
5.2.60.0040.0339.15
5.2.50.0060.0299.13
5.2.40.0030.0319.10
5.2.30.0010.0389.07
5.2.20.0060.0289.05
5.2.10.0060.0318.96
5.2.00.0040.0308.82
5.1.60.0020.0278.11
5.1.50.0020.0278.11
5.1.40.0060.0238.09
5.1.30.0040.0308.44
5.1.20.0020.0298.46
5.1.10.0050.0258.19
5.1.00.0050.0258.19
5.0.50.0060.0236.67
5.0.40.0040.0196.54
5.0.30.0040.0316.35
5.0.20.0040.0196.33
5.0.10.0030.0216.32
5.0.00.0020.0326.31
4.4.90.0020.0164.78
4.4.80.0020.0164.75
4.4.70.0000.0184.76
4.4.60.0040.0144.76
4.4.50.0020.0164.77
4.4.40.0050.0234.71
4.4.30.0010.0174.76
4.4.20.0010.0174.84
4.4.10.0030.0154.85
4.4.00.0020.0264.75
4.3.110.0060.0124.67
4.3.100.0050.0124.66
4.3.90.0020.0154.63
4.3.80.0040.0234.61
4.3.70.0050.0124.63
4.3.60.0030.0144.62
4.3.50.0010.0174.63
4.3.40.0040.0234.55
4.3.30.0010.0173.36
4.3.20.0030.0153.34
4.3.10.0000.0183.29
4.3.00.0000.02015.69

preferences:
40.3 ms | 400 KiB | 5 Q