3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var1 = str_repeat(" ", 4); $var2 = str_repeat(" ", 4); $var1[0] = $var2[0] = "1"; $var1[2] = "2"; $var2[2] = "3"; $var1[2] = $var2[2] = "4"; $var1[3] = $var2[3] = "5"; echo 'Var1: ' . $var1 . ', Var2: ' . $var2;

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)
8.3.60.0140.00718.45
8.3.50.0100.00821.98
8.3.40.0120.00318.97
8.3.30.0070.00718.71
8.3.20.0060.01318.73
8.3.10.0040.00420.92
8.3.00.0100.00321.60
8.2.180.0150.00616.38
8.2.170.0110.00422.96
8.2.160.0120.00322.26
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0000.00726.16
8.2.120.0080.00021.12
8.2.110.0060.00319.04
8.2.100.0060.00617.91
8.2.90.0000.00819.13
8.2.80.0080.00017.97
8.2.70.0060.00617.35
8.2.60.0050.00317.79
8.2.50.0000.00818.07
8.2.40.0040.00418.34
8.2.30.0030.00519.73
8.2.20.0000.00817.54
8.2.10.0040.00417.67
8.2.00.0040.00417.69
8.1.280.0130.00725.92
8.1.270.0000.00823.99
8.1.260.0030.01426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.73
8.1.230.0090.00320.97
8.1.220.0040.00418.77
8.1.210.0080.00018.91
8.1.200.0030.00617.25
8.1.190.0060.00317.63
8.1.180.0050.00318.10
8.1.170.0050.00418.59
8.1.160.0040.00418.92
8.1.150.0000.00818.56
8.1.140.0060.00317.45
8.1.130.0030.00317.45
8.1.120.0070.00017.54
8.1.110.0000.00817.50
8.1.100.0030.00517.44
8.1.90.0040.00317.45
8.1.80.0000.00717.53
8.1.70.0000.00717.43
8.1.60.0000.00817.48
8.1.50.0040.00417.38
8.1.40.0060.00317.52
8.1.30.0030.00517.66
8.1.20.0000.00817.57
8.1.10.0050.00317.54
8.1.00.0000.00717.45
8.0.300.0070.00020.02
8.0.290.0000.00817.15
8.0.280.0040.00418.36
8.0.270.0070.00017.21
8.0.260.0040.00416.66
8.0.250.0040.00416.93
8.0.240.0040.00416.86
8.0.230.0030.00316.81
8.0.220.0000.00716.88
8.0.210.0030.00316.91
8.0.200.0060.00016.91
8.0.190.0040.00416.93
8.0.180.0000.00816.93
8.0.170.0000.00716.91
8.0.160.0040.00416.79
8.0.150.0030.00516.79
8.0.140.0060.00616.84
8.0.130.0000.00513.40
8.0.120.0000.00916.79
8.0.110.0040.00416.77
8.0.100.0000.00716.84
8.0.90.0040.00416.77
8.0.80.0040.01116.91
8.0.70.0000.00716.72
8.0.60.0000.00816.79
8.0.50.0070.00016.76
8.0.30.0110.00917.10
8.0.20.0120.00717.40
8.0.10.0000.00717.02
8.0.00.0100.00716.62
7.4.330.0020.00214.83
7.4.320.0040.00416.64
7.4.300.0000.00716.64
7.4.290.0030.00316.43
7.4.280.0000.00716.50
7.4.270.0000.00716.66
7.4.260.0000.00513.27
7.4.250.0070.00016.61
7.4.240.0000.00716.57
7.4.230.0030.00316.37
7.4.220.0030.01516.64
7.4.210.0100.00616.52
7.4.200.0040.00416.25
7.4.190.0040.00416.72
7.4.160.0050.01016.68
7.4.150.0070.01217.40
7.4.140.0070.01417.86
7.4.130.0080.01016.51
7.4.120.0070.01116.47
7.4.110.0100.00716.36
7.4.100.0100.00716.40
7.4.90.0130.01016.28
7.4.80.0150.00319.37
7.4.70.0170.00016.64
7.4.60.0070.01016.36
7.4.50.0060.00316.52
7.4.40.0040.01122.52
7.4.30.0120.00316.56
7.4.00.0100.00714.86
7.3.330.0000.00513.07
7.3.320.0050.00313.02
7.3.310.0000.00716.42
7.3.300.0030.00316.17
7.3.290.0130.00316.29
7.3.280.0060.00816.31
7.3.270.0040.01417.40
7.3.260.0090.00918.24
7.3.250.0100.01016.48
7.3.240.0060.01516.41
7.3.230.0030.01416.58
7.3.210.0100.00716.35
7.3.200.0080.00819.39
7.3.190.0160.00016.34
7.3.180.0100.01016.42
7.3.170.0030.01316.33
7.3.160.0060.01616.43
7.3.120.0050.01214.83
7.3.110.0120.00615.07
7.3.100.0070.00714.91
7.3.90.0040.01114.99
7.3.80.0060.00915.04
7.3.70.0030.00714.77
7.3.60.0060.01014.77
7.3.50.0030.00614.86
7.3.40.0100.00714.78
7.3.30.0070.01114.86
7.3.20.0060.01216.72
7.3.10.0080.01116.74
7.3.00.0060.00616.82
7.2.330.0100.00716.46
7.2.320.0090.01316.55
7.2.310.0080.00916.75
7.2.300.0100.00716.48
7.2.290.0100.01016.70
7.2.250.0030.01414.93
7.2.240.0150.00414.88
7.2.230.0110.00415.29
7.2.220.0040.01115.02
7.2.210.0090.00614.71
7.2.200.0000.01315.03
7.2.190.0060.00914.89
7.2.180.0060.00915.05
7.2.170.0030.00714.81
7.2.130.0050.00516.87
7.2.120.0060.00616.82
7.2.110.0080.00816.84
7.2.100.0060.00616.76
7.2.90.0000.01016.93
7.2.80.0030.00916.76
7.2.70.0040.00816.71
7.2.60.0060.00816.77
7.2.50.0090.00616.70
7.2.40.0090.00316.79
7.2.30.0040.01116.80
7.2.20.0090.00616.87
7.2.10.0000.01316.91
7.2.00.0040.00818.16
7.1.330.0040.00815.80
7.1.320.0030.00915.42
7.1.310.0110.00315.74
7.1.300.0000.01515.59
7.1.290.0050.00515.84
7.1.280.0000.01515.64
7.1.270.0090.00015.94
7.1.260.0040.01515.88
7.1.250.0040.01115.71
7.1.240.0070.00715.51
7.1.230.0090.00315.66
7.1.220.0040.00715.79
7.1.210.0040.00715.75
7.1.200.0050.00715.46
7.1.190.0060.00615.56
7.1.180.0030.00615.93
7.1.170.0060.00615.78
7.1.160.0070.00415.82
7.1.150.0000.01715.92
7.1.140.0000.00915.51
7.1.130.0070.00315.50
7.1.120.0060.00615.84
7.1.110.0040.00715.87
7.1.100.0100.00216.81
7.1.90.0040.00815.86
7.1.80.0140.00015.76
7.1.70.0030.00616.55
7.1.60.0050.01017.58
7.1.50.0100.00816.46
7.1.40.0100.00315.90
7.1.30.0030.00615.64
7.1.20.0040.01115.66
7.1.10.0050.00515.85
7.1.00.0040.03419.15
7.0.330.0070.00315.43
7.0.320.0030.00615.43
7.0.310.0060.00615.38
7.0.300.0060.00315.57
7.0.290.0000.01515.39
7.0.280.0030.00715.46
7.0.270.0000.00815.38
7.0.260.0080.00415.42
7.0.250.0090.00315.54
7.0.240.0030.00615.29
7.0.230.0090.00615.54
7.0.220.0110.00015.41
7.0.210.0030.00515.19
7.0.200.0030.00716.08
7.0.190.0030.00715.32
7.0.180.0030.00615.26
7.0.170.0070.00315.22
7.0.160.0040.00415.38
7.0.150.0070.00715.23
7.0.140.0030.05018.63
7.0.130.0040.00815.50
7.0.120.0040.00415.39
7.0.110.0000.01015.24
7.0.100.0060.00615.09
7.0.90.0070.00715.32
7.0.80.0030.00615.43
7.0.70.0100.02818.70
7.0.60.0070.04618.44
7.0.50.0030.04518.85
7.0.40.0020.04816.86
7.0.30.0030.02916.96
7.0.20.0020.04916.74
7.0.10.0050.04616.83
7.0.00.0030.04516.78
5.6.380.0060.00614.33
5.6.370.0030.01014.43
5.6.360.0130.00014.64
5.6.350.0030.00714.09
5.6.340.0060.00914.43
5.6.330.0030.01114.42
5.6.320.0000.00814.50
5.6.310.0090.00314.43
5.6.300.0030.00313.92
5.6.290.0070.00714.54
5.6.280.0000.01514.34
5.6.270.0000.01614.51
5.6.260.0040.01114.45
5.6.250.0060.00314.56
5.6.240.0000.01614.45
5.6.230.0030.01014.63
5.6.220.0030.04517.47
5.6.210.0090.03917.40
5.6.200.0100.04017.82
5.6.190.0100.04217.67
5.6.180.0010.02817.82
5.6.170.0080.03617.67
5.6.160.0050.02717.57
5.6.150.0050.02317.82
5.6.140.0010.05017.61
5.6.130.0110.03917.70
5.6.120.0100.03817.60
5.6.110.0050.03217.73
5.6.100.0070.03817.74
5.6.90.0140.04017.63
5.6.80.0020.04717.37
5.6.70.0040.04417.47
5.6.60.0020.04617.27
5.6.50.0020.04517.27
5.6.40.0050.02717.40
5.6.30.0080.03817.33
5.6.20.0070.04217.39
5.6.10.0050.03717.36
5.6.00.0070.04217.28
5.5.380.0090.00311.18
5.5.370.0030.00711.18
5.5.360.0080.04215.74
5.5.350.0070.03715.76
5.5.340.0030.04016.04
5.5.330.0100.03716.15
5.5.320.0070.03516.13
5.5.310.0050.03616.04
5.5.300.0030.04316.00
5.5.290.0030.04515.95
5.5.280.0050.04716.04
5.5.270.0050.04616.01
5.5.260.0030.04716.00
5.5.250.0050.04215.89
5.5.240.0020.04415.68
5.5.230.0000.04715.76
5.5.220.0050.03715.70
5.5.210.0030.04015.69
5.5.200.0020.03015.66
5.5.190.0040.03515.69
5.5.180.0050.03615.72
5.5.170.0040.00411.18
5.5.160.0030.03515.72
5.5.150.0030.04315.70
5.5.140.0080.03315.70
5.5.130.0070.03715.67
5.5.120.0050.03515.69
5.5.110.0050.04115.71
5.5.100.0000.04415.63
5.5.90.0030.04015.63
5.5.80.0070.03515.62
5.5.70.0020.04215.63
5.5.60.0070.03915.64
5.5.50.0100.03215.58
5.5.40.0070.03815.61
5.5.30.0030.04215.63
5.5.20.0070.03815.65
5.5.10.0090.03815.56
5.5.00.0060.03715.63
5.4.450.0050.04015.31
5.4.440.0050.04515.32
5.4.430.0020.03615.26
5.4.420.0050.02115.29
5.4.410.0040.03515.25
5.4.400.0000.04715.00
5.4.390.0050.04015.06
5.4.380.0050.03315.13
5.4.370.0040.04114.99
5.4.360.0020.03915.12
5.4.350.0050.03315.16
5.4.340.0050.04215.07
5.4.330.0000.00711.18
5.4.320.0050.04014.98
5.4.310.0030.02314.98
5.4.300.0050.04015.14
5.4.290.0040.02815.10
5.4.280.0030.02415.08
5.4.270.0000.04514.98
5.4.260.0020.03015.20
5.4.250.0020.04215.13
5.4.240.0100.03615.03
5.4.230.0050.04015.14
5.4.220.0060.03515.14
5.4.210.0020.04415.21
5.4.200.0050.04015.07
5.4.190.0050.04015.10
5.4.180.0050.04015.21
5.4.170.0050.03815.07
5.4.160.0010.04315.19
5.4.150.0030.03815.12
5.4.140.0050.03913.78
5.4.130.0070.03313.77
5.4.120.0070.03813.73
5.4.110.0050.04113.76
5.4.100.0020.04313.75
5.4.90.0030.03913.71
5.4.80.0040.03913.77
5.4.70.0030.03713.77
5.4.60.0070.02813.71
5.4.50.0060.03913.75
5.4.40.0000.03213.73
5.4.30.0070.02513.80
5.4.20.0030.02513.74
5.4.10.0080.03713.77
5.4.00.0030.04013.50
5.3.290.0050.02312.85
5.3.280.0070.03712.86
5.3.270.0050.02812.81
5.3.260.0080.04012.80
5.3.250.0020.04112.84
5.3.240.0020.03712.89
5.3.230.0040.04212.85
5.3.220.0030.03912.87
5.3.210.0010.04112.84
5.3.200.0030.03812.85
5.3.190.0020.04112.87
5.3.180.0050.03212.86
5.3.170.0040.04112.85
5.3.160.0030.04112.86
5.3.150.0070.03812.87
5.3.140.0020.03012.86
5.3.130.0000.04612.77
5.3.120.0030.04512.83
5.3.110.0030.04012.78
5.3.100.0030.03912.56
5.3.90.0030.02412.59
5.3.80.0000.02912.60
5.3.70.0080.03512.52
5.3.60.0040.03812.52
5.3.50.0050.03712.55
5.3.40.0020.04212.53
5.3.30.0040.03912.53
5.3.20.0040.03812.32
5.3.10.0020.04012.41
5.3.00.0020.02212.40
5.2.170.0020.03311.67
5.2.160.0030.03311.67
5.2.150.0030.03711.67
5.2.140.0030.03111.67
5.2.130.0030.03011.67
5.2.120.0030.03411.67
5.2.110.0040.02011.67
5.2.100.0060.03211.67
5.2.90.0050.03011.67
5.2.80.0030.03511.67
5.2.70.0030.03311.67
5.2.60.0050.03011.67
5.2.50.0030.03311.67
5.2.40.0020.03311.67
5.2.30.0030.03011.67
5.2.20.0050.03011.67
5.2.10.0070.03011.67
5.2.00.0020.03011.67
5.1.60.0020.03011.67
5.1.50.0060.02611.67
5.1.40.0000.02511.67
5.1.30.0050.02511.67
5.1.20.0000.03111.67
5.1.10.0050.03011.67
5.1.00.0010.03011.67
5.0.50.0030.02311.67
5.0.40.0010.02111.67
5.0.30.0020.02911.67
5.0.20.0020.02311.67
5.0.10.0030.02311.67
5.0.00.0050.03311.67
4.4.90.0000.01511.67
4.4.80.0030.01811.67
4.4.70.0010.01411.67
4.4.60.0000.02011.67
4.4.50.0000.02011.67
4.4.40.0020.02711.67
4.4.30.0030.01611.67
4.4.20.0020.01811.67
4.4.10.0020.02011.67
4.4.00.0030.02311.67
4.3.110.0020.01811.67
4.3.100.0020.01511.67
4.3.90.0000.01811.67
4.3.80.0000.03011.67
4.3.70.0030.01711.67
4.3.60.0020.01811.67
4.3.50.0020.01511.67
4.3.40.0050.02311.67
4.3.30.0010.02011.67
4.3.20.0000.01911.67
4.3.10.0020.01911.67
4.3.00.0050.01511.67

preferences:
52.53 ms | 401 KiB | 5 Q