3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "cat"; $b = "bat"; $lenA = strlen($a); $lenB = strlen($b); echo "$a $lenA";

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)
8.3.70.0140.00716.25
8.3.60.0080.01216.38
8.3.50.0150.00621.98
8.3.40.0110.01118.71
8.3.30.0140.01118.24
8.3.20.0120.00618.89
8.3.10.0120.00621.73
8.3.00.0060.00319.68
8.2.180.0140.01018.29
8.2.170.0100.01022.96
8.2.160.0080.00820.43
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0050.00226.16
8.2.120.0050.00220.70
8.2.110.0040.00722.16
8.2.100.0060.00618.16
8.2.90.0000.00819.08
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0080.00018.04
8.2.50.0030.00518.10
8.2.40.0080.00020.46
8.2.30.0040.00420.98
8.2.20.0030.00518.09
8.2.10.0030.00518.17
8.2.00.0020.00517.61
8.1.280.0120.00325.92
8.1.270.0070.01123.92
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.91
8.1.230.0090.00317.42
8.1.220.0000.00817.76
8.1.210.0080.00018.77
8.1.200.0030.00717.23
8.1.190.0040.00418.89
8.1.180.0050.00318.10
8.1.170.0050.00318.89
8.1.160.0000.00818.80
8.1.150.0080.00020.26
8.1.140.0040.00419.48
8.1.130.0040.00420.82
8.1.120.0030.00317.36
8.1.110.0040.00417.33
8.1.100.0080.00017.37
8.1.90.0040.00417.32
8.1.80.0000.00817.40
8.1.70.0000.00717.40
8.1.60.0040.00417.51
8.1.50.0000.00817.48
8.1.40.0000.00817.45
8.1.30.0000.00917.55
8.1.20.0000.00917.55
8.1.10.0090.00017.40
8.1.00.0080.00017.32
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0030.00318.33
8.0.270.0070.00017.29
8.0.260.0040.00417.15
8.0.250.0030.00316.92
8.0.240.0070.00016.90
8.0.230.0030.00316.94
8.0.220.0000.00816.87
8.0.210.0000.00716.81
8.0.200.0000.01016.87
8.0.190.0060.00316.93
8.0.180.0050.00316.80
8.0.170.0060.00316.80
8.0.160.0070.00016.91
8.0.150.0050.00316.81
8.0.140.0000.00716.87
8.0.130.0000.00513.32
8.0.120.0030.00516.85
8.0.110.0070.00016.88
8.0.100.0030.00316.78
8.0.90.0000.00716.92
8.0.80.0030.01416.92
8.0.70.0040.00416.85
8.0.60.0000.00716.77
8.0.50.0080.00016.75
8.0.30.0090.00816.92
8.0.20.0190.02517.40
8.0.10.0050.00216.80
8.0.00.0040.02016.69
7.4.330.0020.00215.55
7.4.320.0080.00016.52
7.4.300.0030.00316.50
7.4.290.0030.00316.53
7.4.280.0050.00316.34
7.4.270.0000.00916.42
7.4.260.0070.00016.55
7.4.250.0000.00816.46
7.4.240.0000.00716.50
7.4.230.0000.00816.32
7.4.220.0170.01316.47
7.4.210.0120.00416.39
7.4.200.0000.00716.59
7.4.160.0110.00516.41
7.4.150.0170.01117.40
7.4.140.0120.00917.86
7.4.130.0100.00816.35
7.4.120.0100.00816.58
7.4.110.0070.01016.22
7.4.100.0090.00916.38
7.4.90.0040.01416.49
7.4.80.0040.01519.39
7.4.70.0130.00416.46
7.4.60.0100.01016.51
7.4.50.0070.01016.37
7.4.40.0140.00616.40
7.4.30.0110.01116.41
7.4.00.0090.00914.77
7.3.330.0000.00513.13
7.3.320.0030.00613.00
7.3.310.0000.00716.15
7.3.300.0070.00016.23
7.3.290.0100.00616.27
7.3.280.0090.01016.24
7.3.270.0070.01017.40
7.3.260.0080.01016.36
7.3.250.0100.00716.28
7.3.240.0110.00816.41
7.3.230.0100.00716.44
7.3.210.0180.00016.41
7.3.200.0060.01616.40
7.3.190.0080.00916.30
7.3.180.0030.01316.24
7.3.170.0080.00816.58
7.3.160.0180.00416.34
7.3.120.0070.01114.84
7.3.110.0070.00914.63
7.3.100.0050.00814.65
7.3.90.0050.01014.70
7.3.80.0050.00514.68
7.3.70.0080.00514.71
7.3.60.0050.00814.71
7.3.50.0050.00714.72
7.3.40.0080.00614.71
7.3.30.0110.00314.63
7.3.20.0020.01316.51
7.3.10.0090.00516.56
7.3.00.0070.00616.57
7.2.330.0060.00916.27
7.2.320.0090.01316.49
7.2.310.0000.01616.52
7.2.300.0030.01816.58
7.2.290.0030.01316.61
7.2.250.0100.00714.86
7.2.240.0050.01315.06
7.2.230.0030.00914.83
7.2.220.0100.00714.88
7.2.210.0080.00614.78
7.2.200.0050.00514.81
7.2.190.0070.00715.04
7.2.180.0050.00714.77
7.2.170.0050.00814.91
7.2.130.0090.00416.65
7.2.120.0040.00916.74
7.2.110.0040.01216.72
7.2.100.0080.00416.78
7.2.90.0090.00316.86
7.2.80.0080.00516.64
7.2.70.0030.00716.70
7.2.60.0140.00816.56
7.2.50.0060.00716.86
7.2.40.0040.00916.93
7.2.30.0070.00716.70
7.2.20.0070.00516.67
7.2.10.0020.00916.60
7.2.00.0050.00817.54
7.1.330.0060.00915.69
7.1.320.0060.00715.70
7.1.310.0060.00915.77
7.1.300.0070.00515.72
7.1.290.0060.00715.63
7.1.280.0060.00615.59
7.1.270.0040.00615.65
7.1.260.0100.00215.83
7.1.250.0030.00815.62
7.1.200.0030.00715.55
7.1.70.0040.00416.97
7.1.60.0070.01416.95
7.1.50.0080.00316.80
7.1.40.0070.00716.63
7.1.30.0070.00316.67
7.1.20.0000.01016.69
7.1.10.0000.00816.64
7.1.00.0000.00816.55
7.0.200.0040.00416.73
7.0.190.0030.00716.71
7.0.180.0000.00816.23
7.0.170.0030.00616.09
7.0.160.0050.00316.50
7.0.150.0000.00816.18
7.0.140.0000.00716.47
7.0.130.0000.00716.34
7.0.120.0040.00416.45
7.0.110.0000.00716.55
7.0.100.0070.00316.16
7.0.90.0000.00816.08
7.0.80.0020.00516.48
7.0.70.0040.00416.07
7.0.60.0040.00416.12
7.0.50.0040.00416.45
7.0.40.0040.00415.25
7.0.30.0060.00615.25
7.0.20.0060.00315.25
7.0.10.0040.00815.25
7.0.00.0030.00615.25
5.6.300.0000.04320.81
5.6.290.0070.03720.64
5.6.280.0070.04321.07
5.6.270.0000.04620.88
5.6.260.0070.03620.86
5.6.250.0000.04920.99
5.6.240.0030.04420.84
5.6.230.0000.04921.04
5.6.220.0000.04720.81
5.6.210.0100.03720.96
5.6.200.0100.04520.83
5.6.190.0000.05520.81
5.6.180.0060.04821.02
5.6.170.0100.04321.02
5.6.160.0070.04421.03
5.6.150.0030.04121.02
5.6.140.0030.04020.94
5.6.130.0070.03620.98
5.6.120.0100.06020.76
5.6.110.0030.04320.93
5.6.100.0000.05321.00
5.6.90.0000.05020.93
5.6.80.0030.03920.34
5.6.70.0060.03520.37
5.6.60.0200.03020.36
5.6.50.0000.04420.15
5.6.40.0100.03320.31
5.6.30.0030.04720.36
5.6.20.0070.04520.28
5.6.10.0130.03220.05
5.6.00.0070.03920.26

preferences:
65.93 ms | 401 KiB | 5 Q