3v4l.org

run code in 300+ PHP versions simultaneously
<?php class B { public function __toString() { return 'b'; } } $a = 'a'; $b = new B(); $c = $a . $b; echo $c;

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)
8.3.60.0120.00316.38
8.3.50.0140.00821.88
8.3.40.0110.00718.67
8.3.30.0110.00418.95
8.3.20.0040.00420.05
8.3.10.0080.00023.52
8.3.00.0080.00019.25
8.2.180.0110.00716.50
8.2.170.0070.01422.96
8.2.160.0070.00720.34
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0060.00326.16
8.2.120.0000.00722.17
8.2.110.0050.00522.26
8.2.100.0070.00717.91
8.2.90.0040.00419.26
8.2.80.0060.00317.97
8.2.70.0040.00417.60
8.2.60.0090.00018.05
8.2.50.0060.00618.07
8.2.40.0040.00419.88
8.2.30.0040.00418.14
8.2.20.0040.00417.59
8.2.10.0050.00218.02
8.2.00.0000.00817.73
8.1.280.0110.00425.92
8.1.270.0030.00522.18
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0000.00923.97
8.1.230.0110.00019.16
8.1.220.0030.00517.79
8.1.210.0000.00818.77
8.1.200.0080.00017.35
8.1.190.0050.00317.53
8.1.180.0060.00319.01
8.1.170.0050.00318.60
8.1.160.0040.00422.02
8.1.150.0070.00018.51
8.1.140.0040.00417.41
8.1.130.0070.00017.73
8.1.120.0000.00717.41
8.1.110.0040.00417.36
8.1.100.0030.00517.49
8.1.90.0070.00017.34
8.1.80.0040.00417.44
8.1.70.0070.00017.41
8.1.60.0090.00317.65
8.1.50.0000.00817.41
8.1.40.0040.00417.44
8.1.30.0040.00417.52
8.1.20.0000.00817.64
8.1.10.0060.00317.47
8.1.00.0080.00017.55
8.0.300.0040.00420.58
8.0.290.0040.00417.05
8.0.280.0030.00318.44
8.0.270.0030.00317.26
8.0.260.0000.00617.26
8.0.250.0030.00316.98
8.0.240.0020.00516.84
8.0.230.0070.00016.88
8.0.220.0050.00316.92
8.0.210.0070.00016.73
8.0.200.0000.00716.84
8.0.190.0040.00416.97
8.0.180.0040.00416.88
8.0.170.0070.00016.88
8.0.160.0060.00316.79
8.0.150.0040.00416.86
8.0.140.0000.00716.74
8.0.130.0000.00613.29
8.0.120.0030.00516.77
8.0.110.0020.00516.83
8.0.100.0000.00716.75
8.0.90.0050.00316.86
8.0.80.0090.00616.82
8.0.70.0000.00716.88
8.0.60.0000.00716.91
8.0.50.0000.00716.66
8.0.30.0060.01317.31
8.0.20.0060.01117.40
8.0.10.0040.00417.00
8.0.00.0080.01316.77
7.4.330.0030.00315.00
7.4.320.0030.00316.34
7.4.300.0030.00316.49
7.4.290.0000.00716.50
7.4.280.0030.00316.52
7.4.270.0000.00716.54
7.4.260.0000.00716.58
7.4.250.0000.00716.54
7.4.240.0050.00316.53
7.4.230.0030.00316.55
7.4.220.0070.01016.51
7.4.210.0100.00516.55
7.4.200.0030.00316.33
7.4.190.0030.00416.45
7.4.160.0130.01016.46
7.4.150.0100.01017.40
7.4.140.0070.01017.86
7.4.130.0070.01016.51
7.4.120.0080.00816.45
7.4.110.0080.00916.55
7.4.100.0070.01016.44
7.4.90.0040.01416.65
7.4.80.0130.01319.39
7.4.70.0080.00816.50
7.4.60.0160.00716.31
7.4.50.0040.00416.52
7.4.40.0140.00316.56
7.4.30.0030.01316.45
7.4.00.0050.00514.99
7.3.330.0060.00013.26
7.3.320.0000.00513.17
7.3.310.0030.00316.30
7.3.300.0060.00016.10
7.3.290.0110.00416.25
7.3.280.0120.00616.30
7.3.270.0150.00417.40
7.3.260.0100.00716.64
7.3.250.0080.00816.32
7.3.240.0150.00316.27
7.3.230.0120.00916.56
7.3.210.0100.00716.61
7.3.200.0130.00619.39
7.3.190.0090.00916.65
7.3.180.0120.00916.32
7.3.170.0000.01616.27
7.3.160.0030.01316.42
7.3.120.0120.00314.73
7.2.330.0070.01116.64
7.2.320.0070.01616.70
7.2.310.0130.01016.66
7.2.300.0090.00616.72
7.2.290.0000.01716.35
7.2.60.0100.00516.55
7.2.50.0070.01016.95
7.2.00.0090.00619.39
7.1.200.0060.00615.83
7.1.100.0190.00617.61
7.1.70.0030.00617.25
7.1.60.0040.00717.09
7.1.50.0100.01316.50
7.1.00.0030.07722.27
7.0.200.0030.00616.73
7.0.140.0030.07322.18
7.0.60.0070.08020.02
7.0.50.0070.08017.83
7.0.40.0170.05020.04
7.0.30.0270.08020.17
7.0.20.0270.07720.12
7.0.10.0200.07320.19
7.0.00.0070.06720.08
5.6.280.0030.07320.82
5.6.210.0100.06020.47
5.6.200.0070.05718.29
5.6.190.0030.07020.63
5.6.180.0170.08020.49
5.6.170.0270.07720.54
5.6.160.0100.08320.71
5.6.150.0100.07718.24
5.6.140.0100.07318.18
5.6.130.0070.06318.17
5.6.120.0100.08020.89
5.6.110.0130.04021.00
5.6.100.0100.07721.13
5.6.90.0030.05020.98
5.6.80.0030.08720.52
5.5.350.4130.04720.43
5.5.340.0070.05318.11
5.5.330.0000.04320.42
5.5.320.0370.05320.52
5.5.310.0230.04020.35
5.5.300.0100.05717.98
5.5.290.0070.06317.97
5.5.280.0070.08720.66
5.5.270.0100.08320.63
5.5.260.0100.06320.98
5.5.250.0000.05020.77
5.5.240.0030.06020.16
5.4.450.0300.07019.42
5.4.440.0230.07719.48
5.4.430.0330.06719.40
5.4.420.0230.04019.53
5.4.410.0230.07019.28
5.4.400.0200.03719.22
5.4.390.0170.04018.84
5.4.380.0200.07319.06
5.4.370.0300.05319.00
5.4.360.0300.04019.23
5.4.350.0230.05318.84
5.4.340.0230.03719.16
5.4.320.0200.05019.09
5.4.310.0270.06719.02
5.4.300.0270.05719.20
5.4.290.0230.05719.18
5.4.280.0200.04319.22
5.4.270.0200.04719.20
5.4.260.0270.03019.22
5.4.250.0300.04019.30
5.4.240.0270.05319.18
5.4.230.0270.06318.86
5.4.220.0270.05019.19
5.4.210.0230.05718.86
5.4.200.0200.04719.16
5.4.190.0200.04019.18
5.4.180.0130.04318.88
5.4.170.0270.05718.94
5.4.160.0230.04719.14
5.4.150.0130.04318.84
5.4.140.0200.03316.29
5.4.130.0170.04316.31
5.4.120.0270.04016.37
5.4.110.0230.06016.46
5.4.100.0170.04316.37
5.4.90.0200.03316.54
5.4.80.0230.04316.55
5.4.70.0230.03016.39
5.4.60.0200.04716.23
5.4.50.0170.03716.38
5.4.40.0270.02716.57
5.4.30.0200.03316.30
5.4.20.0330.03316.43
5.4.10.0300.06316.22
5.4.00.0200.04315.77
5.3.290.0230.05014.63
5.3.280.0170.05314.50
5.3.270.0330.03714.60
5.3.260.0270.05314.60
5.3.250.0270.04014.71
5.3.240.0300.05714.57
5.3.230.0230.07014.61
5.3.220.0300.05714.54
5.3.210.0170.05014.58
5.3.200.0200.04014.54
5.3.190.0270.04314.79
5.3.180.0300.03714.70
5.3.170.0300.05014.55
5.3.160.0270.07014.46
5.3.150.0230.03314.46
5.3.140.0270.06014.60
5.3.130.0270.04314.46
5.3.120.0270.07014.55
5.3.110.0170.06714.57
5.3.100.0270.07013.96
5.3.90.0270.07014.04
5.3.80.0230.06014.02
5.3.70.0330.06714.02
5.3.60.0230.05714.02
5.3.50.0230.04714.02
5.3.40.0300.06013.87
5.3.30.0200.07713.91
5.3.20.0230.06313.91
5.3.10.0270.04313.80
5.3.00.0270.06313.56
5.2.170.0200.05712.25
5.2.160.0270.03012.25
5.2.150.0170.06312.25
5.2.140.0200.03312.25
5.2.130.0230.05312.25
5.2.120.0200.05312.25
5.2.110.0130.05312.25
5.2.100.0130.04312.25
5.2.90.0170.03712.25
5.2.80.0130.03312.25
5.2.70.0270.05312.25
5.2.60.0200.03312.25
5.2.50.0130.04012.25
5.2.40.0200.05712.25
5.2.30.0200.03012.25
5.2.20.0200.05712.25
5.2.10.0100.06012.25
5.2.00.0170.03712.25
5.1.60.0170.04312.25
5.1.50.0230.04012.25
5.1.40.0300.01712.25
5.1.30.0230.04012.25
5.1.20.0130.05712.25
5.1.10.0230.04712.25
5.1.00.0200.02012.25
5.0.50.0130.04312.25
5.0.40.0070.02012.25
5.0.30.0070.07012.25
5.0.20.0200.03312.25
5.0.10.0100.02712.25
5.0.00.0030.04012.25
4.4.90.0100.03312.25
4.4.80.0070.04012.25
4.4.70.0070.03012.25
4.4.60.0100.02012.25
4.4.50.0100.02312.25
4.4.40.0030.04712.25
4.4.30.0030.02012.25
4.4.20.0100.03312.25
4.4.10.0100.02012.25
4.4.00.0130.04712.25
4.3.110.0100.01712.25
4.3.100.0070.01712.25
4.3.90.0100.01712.25
4.3.80.0100.04312.25
4.3.70.0070.02712.25
4.3.60.0070.02312.25
4.3.50.0070.01312.25
4.3.40.0070.03312.25
4.3.30.0070.01312.25
4.3.20.0030.03012.25
4.3.10.0000.02312.25
4.3.00.0030.03312.25

preferences:
39.74 ms | 401 KiB | 5 Q