3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(str_len('')); var_dump(str_len(null)); var_dump(str_len('0')); var_dump(str_len(0));

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)
8.3.60.0100.00718.31
8.3.50.0100.00717.93
8.3.40.0040.01118.84
8.3.30.0040.01218.71
8.3.20.0040.00421.70
8.3.10.0070.00021.82
8.3.00.0050.00323.61
8.2.180.0070.00718.23
8.2.170.0100.00718.84
8.2.160.0000.01422.96
8.2.150.0080.00024.18
8.2.140.0000.00724.66
8.2.130.0040.00420.80
8.2.120.0080.00026.35
8.2.110.0030.00622.26
8.2.100.0080.00417.91
8.2.90.0000.00718.03
8.2.80.0000.00818.13
8.2.70.0000.00817.80
8.2.60.0050.00217.91
8.2.50.0040.00418.10
8.2.40.0050.00219.10
8.2.30.0040.00421.03
8.2.20.0050.00217.91
8.2.10.0050.00317.88
8.2.00.0070.00219.69
8.1.280.0060.01625.92
8.1.270.0000.00722.00
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0080.00024.02
8.1.230.0070.00420.97
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0000.00817.23
8.1.190.0050.00316.88
8.1.180.0030.00518.10
8.1.170.0040.00418.40
8.1.160.0000.00718.82
8.1.150.0000.00718.81
8.1.140.0040.00417.70
8.1.130.0090.00020.73
8.1.120.0050.00217.43
8.1.110.0030.00517.38
8.1.100.0030.00417.30
8.1.90.0030.00317.40
8.1.80.0060.00317.31
8.1.70.0040.00417.33
8.1.60.0050.00317.34
8.1.50.0000.00817.34
8.1.40.0040.00417.50
8.1.30.0030.00617.55
8.1.20.0090.00317.54
8.1.10.0030.00617.52
8.1.00.0000.00817.33
8.0.300.0040.00419.91
8.0.290.0000.00916.88
8.0.280.0040.00418.39
8.0.270.0000.00717.19
8.0.260.0030.00617.14
8.0.250.0030.00316.99
8.0.240.0030.00617.01
8.0.230.0030.00316.91
8.0.220.0030.00316.92
8.0.210.0050.00316.77
8.0.200.0040.00416.86
8.0.190.0080.00016.83
8.0.180.0000.00716.80
8.0.170.0090.00016.89
8.0.160.0030.00516.97
8.0.150.0020.00916.80
8.0.140.0040.00416.86
8.0.130.0050.00013.27
8.0.120.0000.00716.74
8.0.110.0040.00416.92
8.0.100.0000.00716.88
8.0.90.0000.00816.82
8.0.80.0090.00616.83
8.0.70.0000.00716.88
8.0.60.0030.00516.83
8.0.50.0000.00716.68
8.0.30.0110.00817.03
8.0.20.0120.00717.40
8.0.10.0000.00716.98
8.0.00.0120.00616.63
7.4.330.0050.00015.55
7.4.320.0000.00616.49
7.4.300.0060.00016.42
7.4.290.0030.00316.42
7.4.280.0000.00716.32
7.4.270.0060.00416.38
7.4.260.0030.00316.51
7.4.250.0000.00716.39
7.4.240.0050.00216.40
7.4.230.0030.00316.47
7.4.220.0070.00016.34
7.4.210.0090.00916.48
7.4.200.0030.00316.60
7.4.160.0060.00916.38
7.4.140.0050.01317.86
7.4.130.0030.01316.41
7.4.120.0100.00816.41
7.4.110.0040.01716.27
7.4.100.0100.00716.42
7.4.90.0180.00516.43
7.4.80.0030.02119.39
7.4.70.0190.00016.46
7.4.60.0140.00316.24
7.4.50.0070.01016.36
7.4.40.0030.01316.55
7.4.00.0060.01215.11
7.3.330.0020.00213.13
7.3.320.0040.00413.00
7.3.310.0000.00716.31
7.3.300.0030.00316.25
7.3.290.0040.00416.25
7.3.280.0070.01016.26
7.3.260.0060.01116.33
7.3.240.0120.00816.47
7.3.230.0080.00816.32
7.3.210.0110.01116.24
7.3.200.0070.01316.35
7.3.190.0100.00616.30
7.3.180.0030.01316.42
7.3.170.0030.01316.33
7.3.160.0130.00316.32
7.3.10.0070.00716.32
7.3.00.0080.00616.67
7.2.330.0070.01116.67
7.2.320.0070.01016.60
7.2.310.0180.00316.59
7.2.300.0080.00816.55
7.2.290.0140.00216.45
7.2.130.0030.01316.91
7.2.120.0040.01116.87
7.2.110.0000.01516.72
7.2.100.0060.00916.79
7.2.90.0040.01416.48
7.2.80.0070.01016.76
7.2.70.0040.00816.82
7.2.60.0070.00716.75
7.2.50.0040.00816.60
7.2.40.0340.00917.20
7.2.30.0360.00717.28
7.2.20.0400.00617.13
7.2.10.0530.01017.23
7.2.00.0440.00917.21
7.1.250.0000.01515.65
7.1.200.0140.00715.16
7.1.160.0560.00916.71
7.1.150.1730.01216.70
7.1.140.0170.01216.60
7.1.130.0860.00616.62
7.1.120.1230.01216.75
7.1.110.1710.00916.20
7.1.100.0950.01016.25
7.1.90.0970.01016.31
7.1.80.0760.00915.75
7.1.70.1080.00715.14
7.1.60.1450.01333.13
7.1.50.0940.01332.91
7.1.40.1110.01332.34
7.1.30.1210.02032.50
7.1.20.0870.01332.62
7.1.10.1100.01114.54
7.1.00.0840.00714.70

preferences:
64.23 ms | 401 KiB | 5 Q