3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo; function takesRef(&$ref) {} takesRef(count([])); takesRef(\count([]));

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)
8.5.20.0330.00617.31
8.5.10.0360.00816.69
8.5.00.0190.01116.51
8.4.170.0270.00921.17
8.4.160.0300.01120.27
8.4.150.0310.01219.86
8.4.140.0350.00817.80
8.4.130.0360.00917.91
8.4.120.0410.00917.88
8.4.110.0370.01217.80
8.4.100.0390.01017.75
8.4.90.0380.00817.92
8.4.80.0390.00817.89
8.4.70.0370.01217.87
8.4.60.0380.00917.85
8.4.50.0370.00917.79
8.4.40.0380.01117.64
8.4.30.0430.00917.63
8.4.20.0320.00817.66
8.4.10.0290.01117.66
8.3.300.0330.01018.96
8.3.290.0330.01018.04
8.3.280.0330.00718.24
8.3.270.0350.00916.57
8.3.260.0380.00916.60
8.3.250.0380.00816.63
8.3.240.0370.01016.54
8.3.230.0330.01016.61
8.3.220.0350.01016.24
8.3.210.0370.00816.57
8.3.200.0330.00716.72
8.3.190.0300.00816.47
8.3.180.0370.00916.45
8.3.170.0290.00816.58
8.3.160.0270.00816.40
8.3.150.0300.00816.24
8.3.140.0270.01016.54
8.3.130.0280.01016.38
8.3.120.0320.00516.62
8.3.110.0310.00916.60
8.3.100.0330.00916.52
8.3.90.0350.00916.57
8.3.80.0390.00916.38
8.3.70.0370.00916.43
8.3.60.0380.01216.67
8.3.50.0300.01216.69
8.3.40.0260.00817.46
8.3.30.0270.00517.49
8.3.20.0220.00517.50
8.3.10.0270.00617.63
8.3.00.0140.00918.75
8.2.300.0500.01218.19
8.2.290.0340.00516.61
8.2.280.0260.01016.55
8.2.270.0350.01016.57
8.2.260.0390.01016.62
8.2.250.0380.01116.72
8.2.240.0160.00516.84
8.2.230.0150.00516.40
8.2.220.0170.00416.49
8.2.210.0150.00316.44
8.2.200.0170.00116.65
8.2.190.0130.00716.47
8.2.180.0130.00616.57
8.2.170.0130.00618.02
8.2.160.0130.00517.95
8.2.150.0150.00317.89
8.2.140.0160.00317.82
8.2.130.0160.00717.55
8.2.120.0180.00717.91
8.2.110.0270.01217.89
8.2.100.0310.00817.65
8.2.90.0320.00517.76
8.2.80.0380.00517.69
8.2.70.0240.01217.86
8.2.60.0270.01017.73
8.2.50.0260.01017.68
8.2.40.0310.01017.68
8.2.30.0290.01017.57
8.2.20.0330.00717.68
8.2.10.0330.00917.57
8.2.00.0390.00717.49
8.1.340.0340.01117.68
8.1.330.0370.00916.40
8.1.320.0320.00816.04
8.1.310.0360.00616.21
8.1.300.0400.00916.01
8.1.290.0300.01215.94
8.1.280.0260.00716.03
8.1.270.0220.00917.65
8.1.260.0290.00817.66
8.1.250.0310.00817.44
8.1.240.0270.00917.66
8.1.230.0270.00917.50
8.1.220.0290.00717.65
8.1.210.0310.01117.47
8.1.200.0280.00817.54
8.1.190.0240.01217.47
8.1.180.0240.01217.29
8.1.170.0290.00717.50
8.1.160.0230.01317.51
8.1.150.0230.00917.48
8.1.140.0230.00717.49
8.1.130.0280.00917.43
8.1.120.0290.01117.43
8.1.110.0280.00917.49
8.1.100.0310.00617.34
8.1.90.0260.01117.58
8.1.80.0250.01017.57
8.1.70.0250.01117.39
8.1.60.0270.00817.83
8.1.50.0290.00817.61
8.1.40.0270.01217.64
8.1.30.0310.00817.77
8.1.20.0250.01017.59
8.1.10.0290.00917.75
8.1.00.0330.00717.42
8.0.300.0280.00716.81
8.0.290.0280.00717.04
8.0.280.0260.00817.04
8.0.270.0270.00716.91
8.0.260.0230.01316.94
8.0.250.0250.01116.87
8.0.240.0330.00316.86
8.0.230.0280.00716.88
8.0.220.0260.00716.90
8.0.210.0260.00917.04
8.0.200.0250.01016.87
8.0.190.0240.01017.12
8.0.180.0260.00916.90
8.0.170.0320.00616.99
8.0.160.0300.00716.89
8.0.150.0320.00816.72
8.0.140.0340.00716.81
8.0.130.0220.01416.90
8.0.120.0150.00617.02
8.0.110.0280.00916.70
8.0.100.0260.00816.86
8.0.90.0270.00816.81
8.0.80.0260.00816.96
8.0.70.0270.00816.91
8.0.60.0290.00716.83
8.0.50.0290.00616.74
8.0.30.0280.00816.96
8.0.20.0260.00816.91
8.0.10.0250.01016.96
8.0.00.0240.01017.14
7.4.330.0300.00516.52
7.4.320.0270.01116.34
7.4.300.0310.00716.48
7.4.290.0240.01016.57
7.4.280.0270.00716.65
7.4.270.0290.00716.59
7.4.260.0300.00616.50
7.4.250.0290.00916.61
7.4.240.0290.00616.53
7.4.230.0250.01016.47
7.4.220.0220.01216.52
7.4.210.0280.00816.58
7.4.200.0290.00716.45
7.4.190.0280.00816.57
7.4.180.0280.00816.48
7.4.160.0250.00816.57
7.4.150.0250.00816.49
7.4.140.0280.00516.38
7.4.130.0290.00516.51
7.4.120.0270.00716.28
7.4.110.0300.01016.43
7.4.100.0250.01016.51
7.4.90.0280.00816.43
7.4.80.0260.00716.47
7.4.70.0270.00816.36
7.4.60.0320.00316.47
7.4.50.0270.00716.27
7.4.40.0250.00916.24
7.4.30.0310.00616.29
7.4.20.0270.01016.30
7.4.10.0320.00416.23
7.4.00.0270.00616.29
7.3.330.0260.00716.62
7.3.320.0230.01016.08
7.3.310.0270.00616.51
7.3.300.0260.00616.22
7.3.290.0260.00716.45
7.3.280.0290.00616.43
7.3.270.0200.01116.95
7.3.260.0220.01016.37
7.3.250.0260.00616.56
7.3.240.0260.00716.22
7.3.230.0280.00616.40
7.3.220.0290.00416.23
7.3.210.0300.00616.36
7.3.200.0260.00716.43
7.3.190.0240.00816.43
7.3.180.0240.00816.43
7.3.170.0280.00616.29
7.3.160.0270.00516.22
7.3.150.0250.01016.22
7.3.140.0290.00516.43
7.3.130.0250.00816.38
7.3.120.0250.00816.50
7.3.110.0250.00716.24
7.3.100.0220.01016.24
7.3.90.0260.00816.32
7.3.80.0280.00716.33
7.3.70.0240.00916.43
7.3.60.0280.00616.42
7.3.50.0250.00716.17
7.3.40.0260.00716.49
7.3.30.0240.00916.68
7.3.20.0280.00818.39
7.3.10.0290.00318.28
7.3.00.0240.00718.33
7.2.340.0250.00616.59
7.2.330.0230.00916.32
7.2.320.0240.00916.21
7.2.310.0230.00916.24
7.2.300.0250.00716.47
7.2.290.0270.00616.34
7.2.280.0260.00616.34
7.2.270.0290.00516.21
7.2.260.0310.00816.19
7.2.250.0340.00916.39
7.2.240.0300.00716.21
7.2.230.0220.01216.34
7.2.220.0270.00616.43
7.2.210.0250.00816.45
7.2.200.0260.00916.43
7.2.190.0260.00816.60
7.2.180.0300.00816.47
7.2.170.0250.00916.72
7.2.160.0230.00916.72
7.2.150.0290.00718.41
7.2.140.0290.00618.57
7.2.130.0280.00318.55
7.2.120.0240.01018.32
7.2.110.0270.00618.33
7.2.100.0250.00818.45
7.2.90.0290.00818.39
7.2.80.0280.00618.52
7.2.70.0300.00618.45
7.2.60.0230.01018.28
7.2.50.0280.00418.52
7.2.40.0260.00818.40
7.2.30.0230.01018.56
7.2.20.0260.00718.48
7.2.10.0270.00618.49
7.2.00.0300.00618.39
7.1.330.0270.00717.48
7.1.320.0220.00917.36
7.1.310.0220.00817.49
7.1.300.0280.00517.41
7.1.290.0210.01017.36
7.1.280.0240.00717.18
7.1.270.0230.00717.48
7.1.260.0250.00617.41
7.1.250.0260.00417.23
7.1.240.0230.00817.43
7.1.230.0240.00717.29
7.1.220.0270.00817.46
7.1.210.0260.00817.29
7.1.200.0260.00617.37
7.1.190.0250.00617.02
7.1.180.0230.00617.26
7.1.170.0260.00717.15
7.1.160.0230.00817.46
7.1.150.0220.00817.11
7.1.140.0240.00817.32
7.1.130.0310.00517.41
7.1.120.0250.00617.33
7.1.110.0260.00917.31
7.1.100.0270.00417.33
7.1.90.0220.00917.37
7.1.80.0250.00617.30
7.1.70.0250.00817.38
7.1.60.0250.00817.17
7.1.50.0240.00717.43
7.1.40.0210.01017.37
7.1.30.0300.00517.20
7.1.20.0260.00517.23
7.1.10.0190.01017.23
7.1.00.0200.00617.08
7.0.330.0170.00717.08
7.0.320.0170.01017.08
7.0.310.0250.00616.96
7.0.300.0240.00617.06
7.0.290.0230.00717.07
7.0.280.0190.00917.06
7.0.270.0220.00716.81
7.0.260.0220.01016.85
7.0.250.0230.00717.25
7.0.240.0230.00617.43
7.0.230.0240.00417.12
7.0.220.0240.00516.88
7.0.210.0250.00317.19
7.0.200.0220.00617.25
7.0.190.0230.00817.12
7.0.180.0240.00617.26
7.0.170.0220.00717.22
7.0.160.0220.01017.14
7.0.150.0260.00617.01
7.0.140.0240.00617.32
7.0.130.0230.00617.07
7.0.120.0260.00317.21
7.0.110.0220.00717.07
7.0.100.0210.00817.24
7.0.90.0240.00717.02
7.0.80.0210.00916.85
7.0.70.0240.00516.93
7.0.60.0220.00817.14
7.0.50.0280.00616.74
7.0.40.0220.00817.00
7.0.30.0260.00617.15
7.0.20.0220.00717.03
7.0.10.0240.00517.18
7.0.00.0240.00516.99
5.6.400.0250.00815.80
5.6.390.0280.00415.87
5.6.380.0290.00415.71
5.6.370.0270.01015.75
5.6.360.0280.00415.77
5.6.350.0230.00815.87
5.6.340.0220.00915.88
5.6.330.0220.00915.79
5.6.320.0270.00415.78
5.6.310.0220.00915.96
5.6.300.0260.00615.74
5.6.290.0280.00315.80
5.6.280.0240.00815.84
5.6.270.0280.00315.63
5.6.260.0260.00515.81
5.6.250.0220.00815.91
5.6.240.0270.00416.10
5.6.230.0240.00715.95
5.6.220.0250.00516.09
5.6.210.0230.00816.00
5.6.200.0240.00716.07
5.6.190.0210.01116.14
5.6.180.0250.00715.70
5.6.170.0250.00916.11
5.6.160.0290.00316.05
5.6.150.0250.00516.08
5.6.140.0240.00816.23
5.6.130.0210.00915.98
5.6.120.0260.00616.02
5.6.110.0220.00815.70
5.6.100.0220.00815.99
5.6.90.0250.00516.02
5.6.80.0230.00816.01
5.6.70.0230.00716.08
5.6.60.0240.00615.99
5.6.50.0240.00615.89
5.6.40.0280.00415.89
5.6.30.0270.00515.86
5.6.20.0190.01115.64
5.6.10.0230.00715.74
5.6.00.0270.00716.01
5.5.380.0220.00815.85
5.5.370.0280.00715.96
5.5.360.0290.00515.69
5.5.350.0250.00715.79
5.5.340.0220.00816.04
5.5.330.0270.00415.85
5.5.320.0260.00515.91
5.5.310.0270.00415.91
5.5.300.0220.00815.86
5.5.290.0210.00915.88
5.5.280.0220.00815.91
5.5.270.0240.00615.78
5.5.260.0210.01015.84
5.5.250.0260.00615.88
5.5.240.0270.00316.01
5.5.230.0230.00815.88
5.5.220.0260.00315.98
5.5.210.0220.00915.92
5.5.200.0290.00815.91
5.5.190.0200.01115.67
5.5.180.0190.00415.63
5.5.170.0110.00315.77
5.5.160.0140.00615.55
5.5.150.0120.00315.73
5.5.140.0110.00315.63
5.5.130.0220.00615.56
5.5.120.0210.00815.82
5.5.110.0210.00815.66
5.5.100.0210.00915.84
5.5.90.0230.00615.91
5.5.80.0220.00715.81
5.5.70.0270.00315.88
5.5.60.0260.00415.73
5.5.50.0220.00815.93
5.5.40.0220.00815.96
5.5.30.0200.01015.86
5.5.20.0220.00915.93
5.5.10.0250.00515.80
5.5.00.0260.00815.74
5.4.450.0180.00614.56
5.4.440.0170.00614.56
5.4.430.0150.00814.56
5.4.420.0190.00514.56
5.4.410.0190.00514.56
5.4.400.0160.00814.56
5.4.390.0190.00514.56
5.4.380.0230.00714.56
5.4.370.0240.00414.56
5.4.360.0190.00514.56
5.4.350.0200.00414.56
5.4.340.0190.00714.56
5.4.330.0170.00614.56
5.4.320.0220.00314.56
5.4.310.0160.00814.56
5.4.300.0210.00414.56
5.4.290.0200.00414.56
5.4.280.0180.00514.56
5.4.270.0170.00714.56
5.4.260.0180.00614.56
5.4.250.0220.00314.56
5.4.240.0160.00814.56
5.4.230.0190.00514.56
5.4.220.0200.00514.56
5.4.210.0210.00314.56
5.4.200.0190.00514.56
5.4.190.0180.00714.56
5.4.180.0180.00614.56
5.4.170.0180.00614.56
5.4.160.0210.00314.56
5.4.150.0190.00514.56
5.4.140.0150.00814.56
5.4.130.0180.00514.56
5.4.120.0170.00714.56
5.4.110.0210.00414.56
5.4.100.0170.01214.56
5.4.90.0160.00714.56
5.4.80.0160.00714.56
5.4.70.0180.00614.56
5.4.60.0160.00714.56
5.4.50.0170.00614.56
5.4.40.0180.00714.56
5.4.30.0200.00414.56
5.4.20.0200.00414.56
5.4.10.0200.00514.56
5.4.00.0170.00614.56
5.3.290.0190.00514.56
5.3.280.0200.00414.56
5.3.270.0160.00914.56
5.3.260.0180.00614.56
5.3.250.0170.00714.56
5.3.240.0190.00414.56
5.3.230.0180.00714.56
5.3.220.0200.00414.56
5.3.210.0170.00714.56
5.3.200.0190.00514.56
5.3.190.0190.00614.56
5.3.180.0170.00814.56
5.3.170.0150.00914.56
5.3.160.0200.00614.56
5.3.150.0170.00814.56
5.3.140.0190.00714.56
5.3.130.0190.00614.56
5.3.120.0200.00614.56
5.3.110.0170.00714.56
5.3.100.0210.00414.56
5.3.90.0180.00514.56
5.3.80.0200.00514.56
5.3.70.0190.00514.56
5.3.60.0190.00514.56
5.3.50.0180.00614.56
5.3.40.0190.00514.56
5.3.30.0190.00414.56
5.3.20.0180.00614.56
5.3.10.0180.00514.56
5.3.00.0200.00314.56
5.2.170.0150.00514.56
5.2.160.0160.00314.56
5.2.150.0150.00614.56
5.2.140.0140.00514.56
5.2.130.0140.00614.56
5.2.120.0140.00614.56
5.2.110.0110.00914.56
5.2.100.0150.00414.56
5.2.90.0160.00314.56
5.2.80.0120.00714.56
5.2.70.0130.00714.56
5.2.60.0110.00814.56
5.2.50.0140.00514.56
5.2.40.0140.00614.56
5.2.30.0140.00814.56
5.2.20.0170.00614.56
5.2.10.0140.00514.56
5.2.00.0120.00614.56
5.1.60.0100.00614.56
5.1.50.0140.00314.56
5.1.40.0140.00314.56
5.1.30.0160.00314.56
5.1.20.0100.00714.56
5.1.10.0180.00414.56
5.1.00.0150.00414.56
5.0.50.0120.00414.56
5.0.40.0120.00214.56
5.0.30.0090.00514.56
5.0.20.0100.01014.56
5.0.10.0130.00514.56
5.0.00.0120.00314.56
4.4.90.0090.00114.56
4.4.80.0120.00114.56
4.4.70.0070.00314.56
4.4.60.0070.00314.56
4.4.50.0080.00314.56
4.4.40.0100.00414.56
4.4.30.0060.00314.56
4.4.20.0060.00414.56
4.4.10.0070.00314.56
4.4.00.0090.00314.56
4.3.110.0110.00214.56
4.3.100.0080.00214.56
4.3.90.0060.00314.56
4.3.80.0110.00314.56
4.3.70.0090.00214.56
4.3.60.0110.00314.56
4.3.50.0080.00214.56
4.3.40.0110.00514.56
4.3.30.0060.00214.56
4.3.20.0050.00314.56
4.3.10.0060.00314.56
4.3.00.0090.00314.56

preferences:
58.31 ms | 403 KiB | 5 Q