3v4l.org

run code in 300+ PHP versions simultaneously
<?php $countable = null; var_dump(count($countable));

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)
8.5.30.0120.00517.86
8.5.20.0090.00919.94
8.5.10.0110.01016.94
8.5.00.0160.00622.86
8.4.180.0140.00921.88
8.4.170.0110.01124.00
8.4.160.0150.00721.96
8.4.150.0060.00616.95
8.4.140.0140.00917.42
8.4.130.0130.00417.46
8.4.120.0320.00717.79
8.4.110.0320.00717.95
8.4.100.0300.00817.74
8.4.90.0270.00417.76
8.4.80.0210.00317.85
8.4.70.0190.00517.80
8.4.60.0260.00917.70
8.4.50.0250.00417.82
8.4.40.0340.00717.50
8.4.30.0250.00617.34
8.4.20.0300.00617.56
8.4.10.0220.00417.45
8.3.300.0120.00920.78
8.3.290.0140.00720.75
8.3.280.0150.00618.41
8.3.270.0130.00716.60
8.3.260.0100.00916.65
8.3.250.0250.00216.65
8.3.240.0320.00716.58
8.3.230.0260.00816.63
8.3.220.0260.00716.44
8.3.210.0200.00516.69
8.3.200.0160.00616.63
8.3.190.0230.00316.53
8.3.180.0230.00616.57
8.3.170.0300.00616.55
8.3.160.0380.00616.31
8.3.150.0300.00516.58
8.3.140.0230.00416.41
8.3.130.0170.00516.61
8.3.120.0280.00816.50
8.3.110.0270.00416.44
8.3.100.0360.00816.48
8.3.90.0340.00716.58
8.3.80.0290.00716.62
8.3.70.0330.00516.58
8.3.60.0330.00716.57
8.3.50.0200.00416.72
8.3.40.0360.00617.35
8.3.30.0370.00717.50
8.3.20.0330.00817.44
8.3.10.0270.01017.44
8.3.00.0280.00718.48
8.2.300.0140.00620.21
8.2.290.0320.00516.88
8.2.280.0260.00816.53
8.2.270.0270.00716.62
8.2.260.0270.00516.65
8.2.250.0320.00816.71
8.2.240.0310.00716.69
8.2.230.0270.00416.58
8.2.220.0260.00716.66
8.2.210.0270.00716.26
8.2.200.0310.00916.67
8.2.190.0330.01016.51
8.2.180.0280.00516.79
8.2.170.0360.00817.78
8.2.160.0340.00617.65
8.2.150.0340.00417.56
8.2.140.0320.00417.59
8.2.130.0340.00817.38
8.2.120.0340.01017.33
8.2.110.0430.00617.33
8.2.100.0280.00717.51
8.2.90.0460.00717.39
8.2.80.0290.00717.57
8.2.70.0330.00617.42
8.2.60.0340.01117.36
8.2.50.0340.00417.40
8.2.40.0190.00417.53
8.2.30.0310.00517.52
8.2.20.0260.00517.50
8.2.10.0280.00617.56
8.2.00.0260.00517.54
8.1.340.0120.00821.78
8.1.330.0240.00916.18
8.1.320.0180.00816.06
8.1.310.0330.00616.36
8.1.300.0220.00716.07
8.1.290.0350.00516.05
8.1.280.0180.00815.95
8.1.270.0150.00417.32
8.1.260.0190.00317.26
8.1.250.0140.00317.34
8.1.240.0230.00917.00
8.1.230.0310.00417.18
8.1.220.0140.00417.36
8.1.210.0170.00117.34
8.1.200.0130.00417.30
8.1.190.0140.00417.35
8.1.180.0130.00417.12
8.1.170.0190.00617.05
8.1.160.0210.00717.25
8.1.150.0240.00816.99
8.1.140.0340.00316.97
8.1.130.0330.00717.27
8.1.120.0280.01017.35
8.1.110.0220.00417.05
8.1.100.0190.00817.28
8.1.90.0240.01117.36
8.1.80.0330.01017.36
8.1.70.0380.00717.09
8.1.60.0390.00717.25
8.1.50.0360.00717.12
8.1.40.0200.00317.21
8.1.30.0120.00717.34
8.1.20.0180.00217.34
8.1.10.0250.00717.29
8.1.00.0180.00917.24
8.0.300.0220.01116.72
8.0.290.0260.00716.47
8.0.280.0210.00416.59
8.0.270.0130.00516.57
8.0.260.0180.00816.48
8.0.250.0290.00916.51
8.0.240.0280.00716.53
8.0.230.0330.00716.57
8.0.220.0320.00616.61
8.0.210.0320.00816.41
8.0.200.0320.00916.40
8.0.190.0350.00516.60
8.0.180.0350.00816.36
8.0.170.0320.00616.41
8.0.160.0310.00816.50
8.0.150.0260.00716.41
8.0.140.0190.00616.33
8.0.130.0160.00316.47
8.0.120.0140.00416.52
8.0.110.0250.01016.30
8.0.100.0360.00616.61
8.0.90.0370.00516.55
8.0.80.0350.00616.45
8.0.70.0320.00916.48
8.0.60.0420.00716.66
8.0.50.0270.01216.31
8.0.30.0290.00916.82
8.0.20.0290.00316.91
8.0.10.0140.00416.75
8.0.00.0290.00716.88
7.4.330.0300.00816.26
7.4.320.0300.00716.14
7.4.300.0270.00916.16
7.4.290.0280.00716.10
7.4.280.0270.00816.29
7.4.270.0250.00916.19
7.4.260.0270.00816.29
7.4.250.0260.01016.04
7.4.240.0270.00916.29
7.4.230.0250.01116.16
7.4.220.0280.00716.20
7.4.210.0310.00716.36
7.4.200.0260.00616.02
7.4.190.0270.00516.27
7.4.180.0300.00516.34
7.4.160.0170.00616.30
7.4.150.0110.00516.29
7.4.140.0230.01115.96
7.4.130.0290.00615.97
7.4.120.0310.00716.28
7.4.110.0240.00916.17
7.4.100.0300.00516.36
7.4.90.0280.00416.24
7.4.80.0290.00916.33
7.4.70.0300.00416.13
7.4.60.0270.00816.08
7.4.50.0300.00716.00
7.4.40.0360.00316.19
7.4.30.0400.00516.12
7.4.20.0260.00616.04
7.4.10.0270.00716.14
7.4.00.0280.00616.30
7.3.330.0340.00515.91
7.3.320.0290.00915.80
7.3.310.0270.00816.04
7.3.300.0290.00715.84
7.3.290.0250.00516.18
7.3.280.0110.00415.94
7.3.270.0270.00916.01
7.3.260.0290.00715.90
7.3.250.0310.00416.03
7.3.240.0290.00216.02
7.3.230.0290.00415.99
7.3.220.0280.00616.00
7.3.210.0240.00816.14
7.3.200.0160.00115.82
7.3.190.0200.00215.87
7.3.180.0310.00515.92
7.3.170.0290.00415.84
7.3.160.0310.00616.07
7.3.150.0290.00715.68
7.3.140.0290.00715.64
7.3.130.0400.00816.10
7.3.120.0260.01016.13
7.3.110.0250.00915.81
7.3.100.0330.00515.64
7.3.90.0260.01016.13
7.3.80.0300.00315.88
7.3.70.0280.00816.20
7.3.60.0300.00515.98
7.3.50.0310.00616.21
7.3.40.0420.00416.23
7.3.30.0280.00716.20
7.3.20.0360.00418.08
7.3.10.0290.00717.67
7.3.00.0340.00518.00
7.2.340.0290.00716.04
7.2.330.0310.00515.95
7.2.320.0280.00815.82
7.2.310.0280.00716.09
7.2.300.0320.00415.83
7.2.290.0280.00716.04
7.2.280.0280.00816.07
7.2.270.0250.00716.03
7.2.260.0180.00316.07
7.2.250.0130.00416.04
7.2.240.0290.00716.04
7.2.230.0310.00716.07
7.2.220.0270.00516.14
7.2.210.0310.00416.05
7.2.200.0260.00715.95
7.2.190.0270.00816.32
7.2.180.0250.01016.14
7.2.170.0230.00916.09
7.2.160.0280.00716.14
7.2.150.0340.00717.68
7.2.140.0280.00917.91
7.2.130.0270.00817.87
7.2.120.0240.01018.08
7.2.110.0300.00717.95
7.2.100.0300.00718.05
7.2.90.0280.00717.96
7.2.80.0330.00718.28
7.2.70.0280.00718.28
7.2.60.0330.00818.27
7.2.50.0370.00718.04
7.2.40.0130.00418.02
7.2.30.0200.00517.98
7.2.20.0290.00118.08
7.2.10.0260.00717.93
7.2.00.0310.00717.96
7.1.330.0260.00617.27
7.1.320.0220.00916.89
7.1.310.0260.00516.90
7.1.300.0270.00717.07
7.1.290.0230.00817.25
7.1.280.0270.00717.16
7.1.270.0280.00516.98
7.1.260.0260.00716.97
7.1.250.0190.01216.93
7.1.240.0270.00816.93
7.1.230.0230.00816.88
7.1.220.0290.00616.91
7.1.210.0250.00717.14
7.1.200.0280.00616.74
7.1.190.0260.00417.00
7.1.180.0240.00517.09
7.1.170.0300.00516.84
7.1.160.0260.00617.03
7.1.150.0260.00817.10
7.1.140.0270.00816.63
7.1.130.0210.00817.04
7.1.120.0280.00216.82
7.1.110.0230.00816.72
7.1.100.0250.00516.86
7.1.90.0250.00716.99
7.1.80.0270.00716.63
7.1.70.0270.00416.17
7.1.60.0260.00216.46
7.1.50.0190.00916.62
7.1.40.0280.00816.81
7.1.30.0260.00416.87
7.1.20.0280.00716.91
7.1.10.0230.00516.99
7.1.00.0280.00616.79
7.0.330.0250.00816.80
7.0.320.0290.00516.83
7.0.310.0240.00416.47
7.0.300.0160.00316.50
7.0.290.0260.00716.56
7.0.280.0230.00816.84
7.0.270.0270.00516.74
7.0.260.0240.00716.75
7.0.250.0250.00616.97
7.0.240.0250.00717.11
7.0.230.0330.00516.95
7.0.220.0250.00817.04
7.0.210.0150.00216.47
7.0.200.0080.00616.82
7.0.190.0150.00116.70
7.0.180.0120.00416.79
7.0.170.0260.00516.66
7.0.160.0230.00316.84
7.0.150.0230.00916.43
7.0.140.0290.00416.72
7.0.130.0240.00716.54
7.0.120.0290.00516.86
7.0.110.0250.00616.41
7.0.100.0290.00516.82
7.0.90.0230.00616.94
7.0.80.0110.00416.66
7.0.70.0100.00516.70
7.0.60.0280.00916.63
7.0.50.0290.00816.32
7.0.40.0260.01016.15
7.0.30.0270.01016.45
7.0.20.0260.00316.41
7.0.10.0140.00316.87
7.0.00.0130.00516.51
5.6.400.0180.00115.30
5.6.390.0150.00515.46
5.6.380.0120.00615.41
5.6.370.0160.00115.60
5.6.360.0100.00715.27
5.6.350.0120.00315.49
5.6.340.0140.00415.25
5.6.330.0160.00515.29
5.6.320.0120.00315.54
5.6.310.0150.00315.38
5.6.300.0120.00515.14
5.6.290.0110.00415.31
5.6.280.0140.00215.42
5.6.270.0120.00415.20
5.6.260.0140.00315.26
5.6.250.0180.00315.08
5.6.240.0130.00515.37
5.6.230.0110.00415.36
5.6.220.0140.00215.46
5.6.210.0090.00715.41
5.6.200.0130.00415.69
5.6.190.0150.00315.53
5.6.180.0120.00415.37
5.6.170.0130.00515.27
5.6.160.0150.00415.59
5.6.150.0170.00415.44
5.6.140.0130.00415.37
5.6.130.0170.00115.16
5.6.120.0130.00515.31
5.6.110.0110.00415.68
5.6.100.0100.00615.30
5.6.90.0100.00615.65
5.6.80.0140.00515.51
5.6.70.0120.00415.68
5.6.60.0100.00615.61
5.6.50.0100.00515.60
5.6.40.0100.00615.45
5.6.30.0120.00415.51
5.6.20.0130.00415.36
5.6.10.0130.00415.33
5.6.00.0150.00115.67
5.5.380.0140.00215.38
5.5.370.0110.00515.66
5.5.360.0120.00415.11
5.5.350.0120.00415.27
5.5.340.0140.00315.38
5.5.330.0140.00315.54
5.5.320.0140.00315.63
5.5.310.0140.00315.34
5.5.300.0120.00615.58
5.5.290.0110.00515.52
5.5.280.0130.00315.34
5.5.270.0140.00615.27
5.5.260.0130.00515.41
5.5.250.0130.00315.27
5.5.240.0120.00315.56
5.5.230.0130.00215.50
5.5.220.0130.00414.95
5.5.210.0130.00315.35
5.5.200.0110.00515.10
5.5.190.0100.00415.31
5.5.180.0100.00415.37
5.5.170.0110.00515.33
5.5.160.0130.00315.29
5.5.150.0130.00515.06
5.5.140.0150.00515.07
5.5.130.0090.00515.17
5.5.120.0100.00515.11
5.5.110.0110.00515.27
5.5.100.0120.00515.37
5.5.90.0110.00515.34
5.5.80.0120.00415.16
5.5.70.0150.00115.49
5.5.60.0150.00215.52
5.5.50.0110.00315.39
5.5.40.0120.00415.46
5.5.30.0110.00415.49
5.5.20.0110.00615.38
5.5.10.0120.00315.13
5.5.00.0110.00415.23
5.4.450.0090.00314.19
5.4.440.0100.00214.19
5.4.430.0070.00414.19
5.4.420.0120.00114.19
5.4.410.0070.00514.19
5.4.400.0080.00314.19
5.4.390.0070.00414.19
5.4.380.0100.00114.19
5.4.370.0090.00314.19
5.4.360.0100.00314.19
5.4.350.0080.00414.19
5.4.340.0210.00314.19
5.4.330.0190.00514.19
5.4.320.0170.00414.19
5.4.310.0190.00614.19
5.4.300.0190.00514.19
5.4.290.0190.00514.19
5.4.280.0210.00414.19
5.4.270.0200.00514.19
5.4.260.0180.00714.19
5.4.250.0200.00514.19
5.4.240.0180.00714.19
5.4.230.0160.00714.19
5.4.220.0200.00514.19
5.4.210.0220.00414.19
5.4.200.0170.00714.19
5.4.190.0200.00514.19
5.4.180.0190.00414.19
5.4.170.0090.00214.19
5.4.160.0150.00214.19
5.4.150.0210.00414.19
5.4.140.0190.00414.19
5.4.130.0190.00514.19
5.4.120.0150.00514.19
5.4.110.0180.00214.19
5.4.100.0190.00514.19
5.4.90.0220.00314.19
5.4.80.0130.00514.19
5.4.70.0170.00514.19
5.4.60.0180.00514.19
5.4.50.0190.00414.19
5.4.40.0190.00414.19
5.4.30.0210.00314.19
5.4.20.0200.00414.19
5.4.10.0170.00414.19
5.4.00.0190.00414.19
5.3.290.0210.00314.19
5.3.280.0190.00714.19
5.3.270.0200.00514.19
5.3.260.0180.00614.19
5.3.250.0180.00814.19
5.3.240.0200.00514.19
5.3.230.0180.00714.19
5.3.220.0290.00714.19
5.3.210.0210.00414.19
5.3.200.0200.00514.19
5.3.190.0230.00414.19
5.3.180.0220.00514.19
5.3.170.0200.00614.19
5.3.160.0230.00614.19
5.3.150.0200.00614.19
5.3.140.0190.00514.19
5.3.130.0140.00414.19
5.3.120.0090.00214.19
5.3.110.0130.00114.19
5.3.100.0180.00614.19
5.3.90.0210.00314.19
5.3.80.0190.00514.19
5.3.70.0170.00814.19
5.3.60.0150.00514.19
5.3.50.0190.00414.19
5.3.40.0190.00314.19
5.3.30.0160.00414.19
5.3.20.0180.00514.19
5.3.10.0160.00714.19
5.3.00.0220.00414.19
5.2.170.0140.00614.19
5.2.160.0150.00514.19
5.2.150.0150.00514.19
5.2.140.0130.00614.19
5.2.130.0140.00614.19
5.2.120.0140.00614.19
5.2.110.0170.00514.19
5.2.100.0140.00514.19
5.2.90.0170.00314.19
5.2.80.0160.00414.19
5.2.70.0120.00814.19
5.2.60.0160.00414.19
5.2.50.0150.00414.19
5.2.40.0160.00414.19
5.2.30.0160.00314.19
5.2.20.0150.00514.19
5.2.10.0160.00314.19
5.2.00.0140.00514.19
5.1.60.0100.00714.19
5.1.50.0130.00414.19
5.1.40.0130.00514.19
5.1.30.0120.00614.19
5.1.20.0130.00514.19
5.1.10.0100.00714.19
5.1.00.0150.00214.19
5.0.50.0110.00314.19
5.0.40.0100.00514.19
5.0.30.0110.00314.19
5.0.20.0100.00414.19
5.0.10.0100.00414.19
5.0.00.0090.00814.19
4.4.90.0060.00314.19
4.4.80.0090.00114.19
4.4.70.0060.00314.19
4.4.60.0070.00114.19
4.4.50.0060.00314.19
4.4.40.0060.00214.19
4.4.30.0080.00114.19
4.4.20.0090.00014.19
4.4.10.0080.00114.19
4.4.00.0070.00214.19
4.3.110.0070.00214.19
4.3.100.0070.00214.19
4.3.90.0080.00114.19
4.3.80.0050.00314.19
4.3.70.0070.00214.19
4.3.60.0060.00314.19
4.3.50.0080.00114.19
4.3.40.0070.00114.19
4.3.30.0050.00214.19
4.3.20.0050.00214.19
4.3.10.0050.00214.19
4.3.00.0060.00114.19

preferences:
77.03 ms | 2705 KiB | 5 Q