3v4l.org

run code in 300+ PHP versions simultaneously
<?php $result = count(null); var_dump($result); $result = count("ffff"); var_dump($result); $result = count(123); var_dump($result); $result = count(true); var_dump($result); $result = count(false); var_dump($result); $result = count((object) []); var_dump($result); $result = count(['','']); var_dump($result);

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)
8.3.60.0040.01518.31
8.3.50.0110.00717.95
8.3.40.0090.00618.93
8.3.30.0100.01018.58
8.3.20.0040.00419.33
8.3.10.0040.00421.85
8.3.00.0080.00020.67
8.2.180.0110.00418.42
8.2.170.0120.00322.96
8.2.160.0100.00320.65
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0080.00019.51
8.2.120.0040.00426.35
8.2.110.0100.00020.33
8.2.100.0080.00317.78
8.2.90.0040.00419.64
8.2.80.0040.00417.97
8.2.70.0000.00917.91
8.2.60.0000.00918.22
8.2.50.0030.00618.10
8.2.40.0000.00719.07
8.2.30.0070.00019.10
8.2.20.0000.00717.98
8.2.10.0040.00418.00
8.2.00.0040.00417.74
8.1.280.0090.00925.92
8.1.270.0000.00818.87
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0090.00020.77
8.1.230.0060.00622.72
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00717.23
8.1.190.0040.00817.10
8.1.180.0030.00618.67
8.1.170.0000.00818.57
8.1.160.0040.00418.87
8.1.150.0040.00418.92
8.1.140.0040.00423.88
8.1.130.0040.00420.02
8.1.120.0070.00017.25
8.1.110.0040.00417.36
8.1.100.0050.00217.39
8.1.90.0000.00717.24
8.1.80.0070.00017.25
8.1.70.0070.00017.35
8.1.60.0030.00617.39
8.1.50.0080.00017.40
8.1.40.0000.00717.46
8.1.30.0040.00417.56
8.1.20.0000.00717.49
8.1.10.0100.00017.49
8.1.00.0030.00617.44
8.0.300.0040.00419.90
8.0.290.0050.00216.75
8.0.280.0070.00018.31
8.0.270.0030.00317.23
8.0.260.0070.00018.27
8.0.250.0040.00416.96
8.0.240.0040.00416.88
8.0.230.0000.00716.85
8.0.220.0100.00016.85
8.0.210.0000.00716.79
8.0.200.0000.00616.80
8.0.190.0000.00716.98
8.0.180.0000.00816.81
8.0.170.0040.00416.85
8.0.160.0000.00716.90
8.0.150.0000.00816.89
8.0.140.0040.00416.84
8.0.130.0030.00313.38
8.0.120.0030.00516.89
8.0.110.0030.00716.83
8.0.100.0080.00016.81
8.0.90.0020.00516.73
8.0.80.0090.01016.93
8.0.70.0070.00016.79
8.0.60.0000.00716.91
8.0.50.0000.00816.72
8.0.30.0150.00417.08
8.0.20.0030.02017.40
8.0.10.0040.00416.93
8.0.00.0140.00416.63
7.4.330.0000.00515.55
7.4.320.0070.00016.43
7.4.300.0000.00616.43
7.4.290.0000.00716.61
7.4.280.0000.00916.40
7.4.270.0020.00516.61
7.4.260.0000.00816.39
7.4.250.0000.00716.56
7.4.240.0040.00416.40
7.4.230.0000.00716.56
7.4.220.0020.00516.56
7.4.210.0070.00916.55
7.4.200.0070.00016.58
7.4.160.0120.00716.53
7.4.140.0100.00817.86
7.4.130.0150.00316.34
7.4.120.0130.00716.57
7.4.110.0150.00816.38
7.4.100.0060.01216.57
7.4.90.0090.00916.54
7.4.80.0130.00319.39
7.4.70.0150.00416.59
7.4.60.0100.00616.31
7.4.50.0040.00916.48
7.4.40.0140.00316.63
7.4.00.0090.00614.80
7.3.330.0020.00213.18
7.3.320.0000.00513.18
7.3.310.0090.00016.31
7.3.300.0000.00716.10
7.3.290.0070.00016.10
7.3.280.0050.01216.27
7.3.260.0120.00716.36
7.3.240.0090.00916.27
7.3.230.0080.01516.54
7.3.210.0130.00316.24
7.3.200.0160.00016.22
7.3.190.0100.01316.20
7.3.180.0130.00316.55
7.3.170.0150.00616.35
7.3.160.0110.00516.51
7.2.330.0070.01116.26
7.2.320.0090.01116.64
7.2.310.0060.01016.32
7.2.300.0120.00916.36
7.2.290.0110.00616.55
7.2.110.0080.00816.26
7.2.100.0030.01016.26
7.2.90.0090.00616.25
7.2.80.0120.00316.50
7.2.70.0120.00316.89
7.2.60.0100.00316.81
7.2.50.0090.00616.79
7.2.40.0030.00916.71
7.2.30.0060.01116.59
7.2.20.0060.00916.86
7.2.10.0060.01016.52
7.2.00.0040.00816.92
7.1.230.0030.01015.66
7.1.220.0030.01215.43
7.1.210.0080.00315.71
7.1.200.0040.00715.61
7.1.190.0090.00615.34
7.1.180.0000.01115.36
7.1.170.0130.00015.68
7.1.160.0090.00315.57
7.1.150.0030.01115.77
7.1.140.0110.00015.65
7.1.130.0070.00415.39
7.1.120.0070.00715.77
7.1.110.0090.00515.46
7.1.100.0140.00015.70
7.1.90.0070.00715.72
7.1.80.0070.00715.72
7.1.70.0060.00615.70
7.1.60.0150.01833.67
7.1.50.0340.00333.63
7.1.40.0240.01333.63
7.1.30.0230.00733.73
7.1.20.0240.00733.57
7.1.10.0090.00315.78
7.1.00.0090.00315.42
5.6.380.0090.00614.00

preferences:
60.12 ms | 400 KiB | 5 Q