3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "string1"."String2";

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)
8.3.60.0070.01016.50
8.3.50.0050.01121.92
8.3.40.0080.00818.68
8.3.30.0070.00720.30
8.3.20.0040.00420.19
8.3.10.0040.00422.14
8.3.00.0040.00422.18
8.2.180.0070.00716.32
8.2.170.0070.01422.96
8.2.160.0040.00922.25
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0060.00926.16
8.2.120.0060.00320.88
8.2.110.0030.00622.11
8.2.100.0140.00017.59
8.2.90.0030.00619.07
8.2.80.0040.00419.38
8.2.70.0040.00417.38
8.2.60.0000.00817.80
8.2.50.0000.00818.07
8.2.40.0040.00418.09
8.2.30.0030.00617.97
8.2.20.0000.00817.59
8.2.10.0040.00417.61
8.2.00.0060.00317.41
8.1.280.0090.00625.92
8.1.270.0040.00424.66
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0060.00323.97
8.1.230.0070.00419.17
8.1.220.0050.00217.74
8.1.210.0050.00318.77
8.1.200.0030.00617.10
8.1.190.0040.00417.50
8.1.180.0090.00019.01
8.1.170.0050.00318.43
8.1.160.0040.00420.61
8.1.150.0030.00518.40
8.1.140.0050.00217.41
8.1.130.0000.00817.62
8.1.120.0040.00417.24
8.1.110.0040.00417.19
8.1.100.0070.00017.18
8.1.90.0070.00017.30
8.1.80.0030.00317.21
8.1.70.0000.00717.29
8.1.60.0060.00317.44
8.1.50.0040.00417.36
8.1.40.0060.00317.25
8.1.30.0040.00417.54
8.1.20.0000.00817.48
8.1.10.0040.00417.35
8.1.00.0100.00017.34
8.0.300.0070.00018.77
8.0.290.0000.00717.18
8.0.280.0000.00718.48
8.0.270.0000.00717.09
8.0.260.0030.00316.79
8.0.250.0070.00016.84
8.0.240.0000.00816.72
8.0.230.0000.00716.86
8.0.220.0000.00716.73
8.0.210.0000.00716.80
8.0.200.0060.00016.84
8.0.190.0060.00316.89
8.0.180.0000.00716.83
8.0.170.0040.00416.73
8.0.160.0070.00016.70
8.0.150.0000.00716.82
8.0.140.0050.00316.60
8.0.130.0000.00513.14
8.0.120.0000.00916.72
8.0.110.0080.00016.78
8.0.100.0000.00716.66
8.0.90.0050.00216.74
8.0.80.0050.01016.71
8.0.70.0000.00916.64
8.0.60.0040.00416.60
8.0.50.0040.00416.58
8.0.30.0110.00716.85
8.0.20.0120.00717.40
8.0.10.0040.00416.99
8.0.00.0090.01416.64
7.4.330.0050.00015.00
7.4.320.0040.00416.43
7.4.300.0000.00616.37
7.4.290.0000.00716.52
7.4.280.0000.00716.30
7.4.270.0000.00616.37
7.4.260.0000.00716.34
7.4.250.0040.00416.42
7.4.240.0060.00216.35
7.4.230.0040.00416.45
7.4.220.0210.00616.37
7.4.210.0100.00616.34
7.4.200.0000.00716.44
7.4.190.0040.00416.36
7.4.160.0060.00916.31
7.4.150.0080.00917.40
7.4.140.0060.01117.86
7.4.130.0090.01016.52
7.4.120.0090.00716.45
7.4.110.0130.00316.44
7.4.100.0160.00716.28
7.4.90.0070.01716.30
7.4.80.0100.00919.39
7.4.70.0060.01016.36
7.4.60.0070.01016.46
7.4.50.0040.00416.54
7.4.40.0000.01822.77
7.4.30.0160.00016.46
7.4.00.0070.00014.53
7.3.330.0050.00013.00
7.3.320.0030.00312.86
7.3.310.0000.00616.16
7.3.300.0030.00316.07
7.3.290.0070.00716.10
7.3.280.0080.01016.14
7.3.270.0030.02017.40
7.3.260.0070.01116.28
7.3.250.0140.00616.15
7.3.240.0070.01016.48
7.3.230.0090.00616.39
7.3.210.0030.01216.20
7.3.200.0070.01019.39
7.3.190.0060.01716.23
7.3.180.0090.00616.15
7.3.170.0080.00816.46
7.3.160.0030.01316.10
7.3.120.0030.01314.57
7.2.330.0060.01316.55
7.2.320.0000.01616.23
7.2.310.0090.01016.32
7.2.300.0200.00316.57
7.2.290.0130.00316.27
7.2.00.0060.00619.46
7.1.100.0050.00917.96
7.1.70.0000.00817.04
7.1.60.0070.01719.43
7.1.50.0030.01316.83
7.1.00.0070.05022.42
7.0.200.0310.00814.37
7.0.140.0030.07021.99
7.0.60.0100.06019.94
7.0.50.0030.06017.89
7.0.40.0170.04720.20
7.0.30.0200.05020.18
7.0.20.0230.08020.30
7.0.10.0000.04720.30
7.0.00.0070.04020.25
5.6.280.0000.07720.81
5.6.210.0070.08320.68
5.6.200.0100.07718.12
5.6.190.0030.04320.45
5.6.180.0170.07020.57
5.6.170.0300.08320.41
5.6.160.0170.07320.70
5.6.150.0030.03718.17
5.6.140.0130.06318.08
5.6.130.0000.04718.11
5.6.120.0130.07721.13
5.6.110.0130.08020.97
5.6.100.0070.07721.13
5.6.90.0030.08720.97
5.6.80.0070.07020.53
5.5.350.0000.04320.46
5.5.340.0100.04017.99
5.5.330.0100.03720.41
5.5.320.0430.07720.50
5.5.310.0130.04020.17
5.5.300.0070.06017.87
5.5.290.0000.08017.98
5.5.280.0000.08320.84
5.5.270.0070.07020.64
5.5.260.0130.08320.75
5.5.250.0070.08020.60
5.5.240.4130.03320.26
5.4.450.0500.05319.48
5.4.440.0770.05719.50
5.4.430.0830.06019.32
5.4.420.0730.06019.47
5.4.410.1000.06319.41
5.4.400.0270.06019.30
5.4.390.0470.06318.91
5.4.380.0330.04718.70
5.4.370.0200.04318.61
5.4.360.0100.05318.52
5.4.350.0110.04911.97
5.4.340.0120.03911.96
5.4.320.0090.03312.45
5.4.310.0040.05212.45
5.4.300.0070.04212.45
5.4.290.0040.04012.45
5.4.280.0060.03612.34
5.4.270.0080.03412.34
5.4.260.0060.03612.35
5.4.250.0040.03812.35
5.4.240.0130.04718.86
5.4.230.0170.05718.98
5.4.220.0070.07718.87
5.4.210.0170.05718.64
5.4.200.0030.06019.00
5.4.190.0070.05718.73
5.4.180.0130.04718.76
5.4.170.0130.06718.70
5.4.160.0030.05718.88
5.4.150.0100.06018.76
5.4.140.0130.05016.29
5.4.130.0200.05716.30
5.4.120.0070.07016.35
5.4.110.0130.05016.49
5.4.100.0130.04316.43
5.4.90.0100.06716.23
5.4.80.0170.04016.46
5.4.70.0070.07316.42
5.4.60.0170.05716.50
5.4.50.0130.07016.50
5.4.40.0100.06016.30
5.4.30.0200.04316.38
5.4.20.0070.05716.38
5.4.10.0070.05016.46
5.4.00.0100.05315.93
5.3.290.0060.03912.80
5.3.280.0130.05014.45
5.3.270.0170.04314.44
5.3.260.0030.08014.62
5.3.250.0070.05714.61
5.3.240.0070.05714.52
5.3.230.0100.05014.43
5.3.220.0100.05014.61
5.3.210.0130.07314.61
5.3.200.0000.06014.58
5.3.190.0070.05014.45
5.3.180.0100.05014.71
5.3.170.0170.04714.45
5.3.160.0030.05314.57
5.3.150.0030.05714.43
5.3.140.0070.05314.57
5.3.130.0070.05714.46
5.3.120.0000.06014.46
5.3.110.0070.05314.46
5.3.100.0100.05714.04
5.3.90.0030.05713.85
5.3.80.0130.05013.85
5.3.70.0300.05314.10
5.3.60.0130.06313.76
5.3.50.0100.04713.93
5.3.40.0030.05713.95
5.3.30.0130.04313.82
5.3.20.0170.04313.59
5.3.10.0170.04713.48
5.3.00.0100.07013.65

preferences:
46.08 ms | 401 KiB | 5 Q