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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); comparevar('var11 and var15', $var11, $var15); function comparevar($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)
8.3.60.0070.00716.63
8.3.50.0060.01122.81
8.3.40.0180.00018.67
8.3.30.0090.00618.92
8.3.20.0040.00420.29
8.3.10.0040.00423.38
8.3.00.0060.00319.02
8.2.180.0170.00316.50
8.2.170.0110.00422.96
8.2.160.0150.00020.52
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0060.00320.95
8.2.110.0050.00522.25
8.2.100.0080.00417.72
8.2.90.0040.00419.23
8.2.80.0040.00417.97
8.2.70.0000.00917.50
8.2.60.0050.00317.80
8.2.50.0090.00018.07
8.2.40.0000.00819.91
8.2.30.0040.00418.02
8.2.20.0000.00817.72
8.2.10.0000.00717.97
8.2.00.0050.00317.60
8.1.280.0090.00625.92
8.1.270.0080.00023.96
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0000.00923.96
8.1.230.0080.00319.01
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0040.00717.35
8.1.190.0030.00617.13
8.1.180.0060.00318.10
8.1.170.0060.00318.71
8.1.160.0030.00621.98
8.1.150.0000.00818.93
8.1.140.0000.00917.54
8.1.130.0030.00317.78
8.1.120.0050.00217.41
8.1.110.0070.00017.39
8.1.100.0000.00717.37
8.1.90.0000.00717.46
8.1.80.0040.00417.39
8.1.70.0030.00317.46
8.1.60.0000.00817.65
8.1.50.0060.00317.53
8.1.40.0040.00417.50
8.1.30.0030.00517.50
8.1.20.0040.00417.68
8.1.10.0070.00017.43
8.1.00.0050.00217.56
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0040.00418.41
8.0.270.0040.00417.26
8.0.260.0030.00317.29
8.0.250.0030.00316.88
8.0.240.0050.00317.04
8.0.230.0030.00317.00
8.0.220.0040.00417.00
8.0.210.0000.00716.90
8.0.200.0000.00716.89
8.0.190.0040.00417.03
8.0.180.0060.00316.98
8.0.170.0040.00416.94
8.0.160.0000.00716.89
8.0.150.0040.00416.86
8.0.140.0040.00416.86
8.0.130.0030.00313.37
8.0.120.0040.00416.95
8.0.110.0040.00416.95
8.0.100.0040.00416.80
8.0.90.0040.00416.97
8.0.80.0120.00416.99
8.0.70.0000.00716.94
8.0.60.0050.00316.91
8.0.50.0020.00516.93
8.0.30.0100.00917.22
8.0.20.0120.00817.40
8.0.10.0030.00516.88
8.0.00.0100.00816.94
7.4.330.0000.00515.09
7.4.320.0030.00316.63
7.4.300.0000.00616.54
7.4.290.0030.00316.47
7.4.280.0050.00316.61
7.4.270.0030.00316.65
7.4.260.0030.00316.55
7.4.250.0040.00416.53
7.4.240.0040.00416.55
7.4.230.0000.00716.48
7.4.220.0070.01116.61
7.4.210.0090.00616.51
7.4.200.0030.00316.71
7.4.160.0060.01716.45
7.4.150.0080.01417.40
7.4.140.0090.00917.86
7.4.130.0050.01216.59
7.4.120.0080.01416.48
7.4.110.0030.01316.61
7.4.100.0200.00316.49
7.4.90.0090.00916.56
7.4.80.0150.00319.39
7.4.70.0090.00916.55
7.4.60.0070.01016.48
7.4.50.0060.00016.54
7.4.40.0070.01716.60
7.4.30.0060.00916.61
7.4.00.0090.00615.19
7.3.330.0030.00313.27
7.3.320.0000.00513.35
7.3.310.0000.00716.23
7.3.300.0030.00316.37
7.3.290.0140.00616.42
7.3.280.0120.00416.39
7.3.270.0070.01317.40
7.3.260.0080.01216.42
7.3.250.0060.01116.51
7.3.240.0090.00916.57
7.3.230.0150.00316.59
7.3.210.0180.00016.77
7.3.200.0130.00919.39
7.3.190.0090.01216.43
7.3.180.0100.00616.60
7.3.170.0090.00616.44
7.3.160.0100.00516.53
7.2.330.0040.01416.58
7.2.320.0070.01016.78
7.2.310.0130.00316.33
7.2.300.0080.00816.55
7.2.290.0130.01016.41
7.1.200.0100.00315.80
7.1.70.0000.01017.17
7.1.60.0120.01219.46
7.1.50.0030.01316.86
7.1.00.0030.07722.30
7.0.200.0030.00316.90
7.0.140.0000.07722.13
7.0.60.0170.07019.89
7.0.50.0030.07717.91
7.0.40.0100.07320.23
7.0.30.0530.07020.23
7.0.20.0200.03720.07
7.0.10.0300.07320.23
7.0.00.0130.07720.16
5.6.280.0130.06320.86
5.6.210.0100.08020.73
5.6.200.0230.06718.18
5.6.190.0070.08020.61
5.6.180.0200.08320.61
5.6.170.0230.04720.51
5.6.160.0100.07020.43
5.6.150.0130.07318.15
5.6.140.0030.08718.15
5.6.130.0130.07718.29
5.6.120.0170.07321.07
5.6.110.0070.09021.13
5.6.100.0100.08321.03
5.6.90.0100.08321.00
5.6.80.0100.07720.56
5.6.70.4670.03020.52
5.5.350.0100.04320.49
5.5.340.0030.08717.99
5.5.330.0100.08020.25
5.5.320.0230.04720.34
5.5.310.0270.07020.19
5.5.300.0130.06717.97
5.5.290.0000.06317.95
5.5.280.0070.03720.75
5.5.270.0030.04320.81
5.5.260.0100.07720.89
5.5.250.0030.04020.65
5.5.240.0130.07720.08
5.4.450.0200.03719.31
5.4.440.0270.04319.42
5.4.430.0170.03319.40
5.4.420.0200.04319.54
5.4.410.0430.04719.29
5.4.400.0330.03719.31
5.4.390.0300.04019.22
5.4.380.0270.06318.70
5.4.370.0370.06718.73
5.4.360.0330.05718.81
5.4.350.0330.05018.43
5.4.340.0400.04318.51
5.4.320.0090.03912.52
5.4.310.0050.03812.52
5.4.300.0030.04512.52
5.4.290.0080.03612.52
5.4.280.0060.03512.41
5.4.270.0060.03612.41
5.4.260.0080.03512.41
5.4.250.0070.03612.41
5.4.240.0050.04012.42
5.4.230.0050.03812.41
5.4.220.0030.04012.41
5.4.210.0060.03412.41
5.4.200.0030.03912.40
5.4.190.0050.03512.41
5.4.180.0060.03412.41
5.4.170.0090.03312.41
5.4.160.0020.03812.41
5.4.150.0070.03312.41
5.4.140.0070.03412.09
5.4.130.0070.03312.07
5.4.120.0030.03812.04
5.4.110.0060.03712.03
5.4.100.0070.03412.02
5.4.90.0020.04012.03
5.4.80.0050.03712.03
5.4.70.0030.03712.02
5.4.60.0030.03812.02
5.4.50.0090.03312.03
5.4.40.0070.03412.02
5.4.30.0040.03612.00
5.4.20.0060.03512.01
5.4.10.0040.03512.01
5.4.00.0050.03611.50
5.3.290.0080.03812.80
5.3.280.0060.03812.71
5.3.270.0050.04112.72
5.3.260.0050.04012.72
5.3.250.0050.04012.71
5.3.240.0070.03812.72
5.3.230.0090.03512.71
5.3.220.0060.03712.68
5.3.210.0070.04312.68
5.3.200.0050.03812.68
5.3.190.0080.03612.67
5.3.180.0080.03412.67
5.3.170.0040.03912.67
5.3.160.0100.03312.67
5.3.150.0040.03912.67
5.3.140.0060.03512.66
5.3.130.0100.03712.66
5.3.120.0070.03612.66
5.3.110.0080.04312.66
5.3.100.0080.03412.13
5.3.90.0060.03712.12
5.3.80.0050.03512.11
5.3.70.0080.03312.11
5.3.60.0060.03912.10
5.3.50.0110.03112.05
5.3.40.0050.03712.04
5.3.30.0070.03812.00
5.3.20.0040.03611.79
5.3.10.0030.03911.74
5.3.00.0070.03511.73
5.2.170.0060.0299.25
5.2.160.0050.0289.25
5.2.150.0050.0309.25
5.2.140.0060.0329.24
5.2.130.0040.0359.20
5.2.120.0050.0289.20
5.2.110.0050.0299.20
5.2.100.0070.0309.20
5.2.90.0040.0289.20
5.2.80.0050.0289.19
5.2.70.0040.0309.19
5.2.60.0030.0319.16
5.2.50.0020.0329.13
5.2.40.0040.0349.10
5.2.30.0050.0369.07
5.2.20.0030.0309.05
5.2.10.0020.0308.96
5.2.00.0010.0328.82
5.1.60.0030.0258.11
5.1.50.0060.0228.11
5.1.40.0030.0258.09
5.1.30.0010.0288.44
5.1.20.0040.0268.46
5.1.10.0060.0238.18
5.1.00.0040.0258.19
5.0.50.0040.0206.67
5.0.40.0040.0196.54
5.0.30.0020.0326.35
5.0.20.0040.0186.33
5.0.10.0020.0216.31
5.0.00.0000.0376.31
4.4.90.0010.0174.78
4.4.80.0030.0144.75
4.4.70.0020.0164.75
4.4.60.0010.0164.75
4.4.50.0020.0154.77
4.4.40.0060.0214.70
4.4.30.0020.0164.76
4.4.20.0030.0154.84
4.4.10.0040.0144.85
4.4.00.0020.0264.76
4.3.110.0000.0194.67
4.3.100.0030.0144.66
4.3.90.0040.0134.63
4.3.80.0030.0234.61
4.3.70.0020.0154.63
4.3.60.0070.0144.63
4.3.50.0030.0174.63
4.3.40.0050.0234.55
4.3.30.0000.0193.36
4.3.20.0010.0183.34
4.3.10.0020.0173.30
4.3.00.0200.0309.30

preferences:
42.85 ms | 401 KiB | 5 Q