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run code in 300+ PHP versions simultaneously
<?php $var11 = '12345'; $var12 = '22b'; $var13 = '12345x'; $var14 = '22'; $var15 = 12345; $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)
8.3.60.0130.00716.63
8.3.50.0150.00322.82
8.3.40.0090.00618.71
8.3.30.0080.00618.96
8.3.20.0040.00420.34
8.3.10.0080.00023.72
8.3.00.0040.00419.25
8.2.180.0160.00318.16
8.2.170.0150.00022.96
8.2.160.0150.00020.41
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.85
8.2.110.0050.00522.24
8.2.100.0040.00817.84
8.2.90.0040.00419.23
8.2.80.0040.00417.97
8.2.70.0050.00317.63
8.2.60.0100.00017.93
8.2.50.0060.00318.07
8.2.40.0040.00420.07
8.2.30.0000.00818.10
8.2.20.0000.00817.65
8.2.10.0040.00417.98
8.2.00.0030.00517.71
8.1.280.0120.00625.92
8.1.270.0060.00323.84
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00523.83
8.1.230.0120.00019.10
8.1.220.0030.00517.74
8.1.210.0030.00618.77
8.1.200.0000.01017.22
8.1.190.0080.00017.35
8.1.180.0000.00818.10
8.1.170.0110.00018.41
8.1.160.0070.00022.05
8.1.150.0070.00419.04
8.1.140.0090.00017.53
8.1.130.0000.00717.78
8.1.120.0040.00417.47
8.1.110.0080.00017.52
8.1.100.0000.00717.53
8.1.90.0050.00317.50
8.1.80.0040.00417.53
8.1.70.0070.00017.48
8.1.60.0060.00317.64
8.1.50.0040.00417.45
8.1.40.0000.00817.54
8.1.30.0000.00817.62
8.1.20.0000.00917.71
8.1.10.0060.00317.46
8.1.00.0050.00317.52
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0000.00718.53
8.0.270.0000.00717.30
8.0.260.0000.00617.20
8.0.250.0040.00416.93
8.0.240.0080.00016.98
8.0.230.0070.00016.86
8.0.220.0040.00416.97
8.0.210.0050.00216.98
8.0.200.0070.00016.90
8.0.190.0000.00817.04
8.0.180.0080.00017.02
8.0.170.0000.00817.00
8.0.160.0050.00216.94
8.0.150.0040.00416.80
8.0.140.0070.00016.84
8.0.130.0040.00313.38
8.0.120.0080.00016.96
8.0.110.0080.00016.98
8.0.100.0000.00716.91
8.0.90.0040.00416.77
8.0.80.0060.00916.85
8.0.70.0040.00416.88
8.0.60.0040.00416.92
8.0.50.0040.00416.95
8.0.30.0120.00717.08
8.0.20.0100.01317.40
8.0.10.0040.00417.08
8.0.00.0050.01216.92
7.4.330.0030.00315.09
7.4.320.0030.00316.56
7.4.300.0030.00316.56
7.4.290.0000.00716.62
7.4.280.0040.00416.64
7.4.270.0030.00316.50
7.4.260.0070.00016.68
7.4.250.0030.00516.63
7.4.240.0060.00216.66
7.4.230.0030.00316.74
7.4.220.0090.00916.68
7.4.210.0070.00716.76
7.4.200.0070.00016.55
7.4.160.0030.01316.42
7.4.150.0140.01417.40
7.4.140.0100.00717.86
7.4.130.0110.00816.57
7.4.120.0070.01016.58
7.4.110.0090.00916.56
7.4.100.0180.00716.71
7.4.90.0120.00716.64
7.4.80.0030.01419.39
7.4.70.0120.00416.55
7.4.60.0090.00916.59
7.4.50.0020.00516.50
7.4.40.0080.00816.43
7.4.30.0040.01216.46
7.4.00.0040.01215.17
7.3.330.0030.00313.36
7.3.320.0000.00513.38
7.3.310.0070.00016.44
7.3.300.0000.00716.37
7.3.290.0060.00916.50
7.3.280.0090.00716.38
7.3.270.0130.00717.40
7.3.260.0090.00916.32
7.3.250.0130.00516.47
7.3.240.0060.01116.63
7.3.230.0090.00916.50
7.3.210.0130.00416.63
7.3.200.0110.00619.39
7.3.190.0070.01016.49
7.3.180.0090.00616.58
7.3.170.0120.00616.72
7.3.160.0120.00916.56
7.2.330.0110.00716.72
7.2.320.0090.00916.54
7.2.310.0160.00716.68
7.2.300.0070.01416.66
7.2.290.0040.01816.37
7.2.60.0030.01016.88
7.1.200.0130.00015.98
7.1.70.0070.00016.87
7.1.60.0140.01019.46
7.1.50.0090.01617.07
7.1.00.0000.08022.29
7.0.200.0070.00016.88
7.0.140.0030.07321.95
7.0.60.0070.07319.89
7.0.50.0070.08018.00
7.0.40.0070.08320.41
7.0.30.0270.04020.08
7.0.20.0300.08020.07
7.0.10.0100.08720.23
7.0.00.0100.08020.23
5.6.280.0030.07321.02
5.6.210.0130.05020.50
5.6.200.0070.07718.16
5.6.190.0000.04720.57
5.6.180.0000.05020.64
5.6.170.0370.06720.62
5.6.160.0070.04320.51
5.6.150.0030.07018.16
5.6.140.0030.07018.23
5.6.130.0100.07718.18
5.6.120.0130.05721.07
5.6.110.0030.07321.08
5.6.100.0000.04720.99
5.6.90.0000.04321.15
5.6.80.0070.04320.39
5.6.70.4500.03720.39
5.5.350.0170.06320.34
5.5.340.0100.07717.99
5.5.330.0070.05320.21
5.5.320.0430.06320.29
5.5.310.0230.08020.29
5.5.300.0070.07317.94
5.5.290.0030.05317.97
5.5.280.0070.03720.66
5.5.270.0130.08020.84
5.5.260.0030.08720.91
5.5.250.0070.08720.48
5.5.240.0270.06720.25
5.4.450.0200.03719.28
5.4.440.0330.05019.16
5.4.430.0200.04019.52
5.4.420.0030.03719.50
5.4.410.0230.04019.29
5.4.400.0270.03319.05
5.4.390.0230.04319.08
5.4.380.0270.05318.79
5.4.370.0230.05318.63
5.4.360.0300.04718.75
5.4.350.0330.05718.80
5.4.340.0330.05018.77
5.4.320.0060.03712.52
5.4.310.0060.03812.52
5.4.300.0050.03612.52
5.4.290.0030.04112.52
5.4.280.0050.03612.42
5.4.270.0080.03812.41
5.4.260.0050.03812.41
5.4.250.0050.03812.41
5.4.240.0040.03812.41
5.4.230.0040.04412.41
5.4.220.0080.03712.41
5.4.210.0040.03712.40
5.4.200.0060.03612.41
5.4.190.0080.03512.40
5.4.180.0080.03412.41
5.4.170.0050.03612.40
5.4.160.0070.03412.41
5.4.150.0090.03112.40
5.4.140.0030.03812.08
5.4.130.0060.03512.07
5.4.120.0090.03112.03
5.4.110.0060.03412.03
5.4.100.0060.03512.03
5.4.90.0040.03812.03
5.4.80.0070.03812.03
5.4.70.0060.03612.02
5.4.60.0080.03412.02
5.4.50.0070.03512.02
5.4.40.0080.03312.01
5.4.30.0050.03512.01
5.4.20.0060.03612.01
5.4.10.0060.03512.01
5.4.00.0070.03411.50
5.3.290.0060.03912.80
5.3.280.0050.04012.71
5.3.270.0050.04212.73
5.3.260.0060.04012.72
5.3.250.0080.03612.72
5.3.240.0050.03912.72
5.3.230.0040.04012.71
5.3.220.0050.03812.68
5.3.210.0060.04012.68
5.3.200.0030.03912.68
5.3.190.0070.03612.68
5.3.180.0080.04512.67
5.3.170.0060.03612.67
5.3.160.0060.03612.67
5.3.150.0080.04012.67
5.3.140.0080.04212.66
5.3.130.0040.04112.66
5.3.120.0080.03812.66
5.3.110.0080.04212.66
5.3.100.0080.03412.13
5.3.90.0060.03912.11
5.3.80.0060.03712.11
5.3.70.0060.03912.11
5.3.60.0050.03812.09
5.3.50.0060.03712.04
5.3.40.0050.03712.05
5.3.30.0030.03812.00
5.3.20.0040.03711.79
5.3.10.0060.03511.74
5.3.00.0030.04011.73
5.2.170.0040.0319.24
5.2.160.0050.0299.24
5.2.150.0040.0319.24
5.2.140.0030.0329.24
5.2.130.0040.0299.20
5.2.120.0030.0309.20
5.2.110.0070.0279.20
5.2.100.0020.0319.20
5.2.90.0070.0279.20
5.2.80.0050.0309.20
5.2.70.0040.0319.20
5.2.60.0050.0309.15
5.2.50.0050.0299.12
5.2.40.0080.0259.09
5.2.30.0040.0299.06
5.2.20.0020.0319.05
5.2.10.0030.0298.96
5.2.00.0070.0288.82
5.1.60.0050.0248.11
5.1.50.0040.0258.11
5.1.40.0040.0308.09
5.1.30.0040.0278.43
5.1.20.0050.0278.46
5.1.10.0030.0278.18
5.1.00.0020.0288.19
5.0.50.0030.0226.67
5.0.40.0040.0206.54
5.0.30.0020.0346.35
5.0.20.0010.0236.33
5.0.10.0040.0196.32
5.0.00.0020.0316.31
4.4.90.0020.0164.78
4.4.80.0040.0144.76
4.4.70.0030.0164.76
4.4.60.0000.0194.75
4.4.50.0020.0174.77
4.4.40.0020.0284.71
4.4.30.0020.0174.76
4.4.20.0040.0144.84
4.4.10.0040.0144.85
4.4.00.0030.0244.75
4.3.110.0050.0154.67
4.3.100.0040.0174.67
4.3.90.0060.0124.63
4.3.80.0050.0264.61
4.3.70.0050.0124.63
4.3.60.0040.0144.63
4.3.50.0010.0174.63
4.3.40.0020.0244.55
4.3.30.0010.0173.36
4.3.20.0040.0203.35
4.3.10.0020.0173.30
4.3.00.0070.01315.69

preferences:
42.09 ms | 401 KiB | 5 Q