3v4l.org

run code in 300+ PHP versions simultaneously
<?php substr(strtolower("Mueller"),4).substr(strtolower("Martina"),4);

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)
8.3.40.0140.00318.60
8.3.30.0070.00718.95
8.3.20.0050.00320.22
8.3.10.0050.00321.90
8.3.00.0040.00419.21
8.2.170.0030.01022.96
8.2.160.0090.00622.16
8.2.150.0080.00024.18
8.2.140.0000.00724.66
8.2.130.0000.00826.16
8.2.120.0000.00720.66
8.2.110.0060.00320.33
8.2.100.0080.00317.72
8.2.90.0040.00417.78
8.2.80.0040.00417.97
8.2.70.0040.00417.67
8.2.60.0050.00318.03
8.2.50.0000.00819.23
8.2.40.0040.00420.90
8.2.30.0040.00419.10
8.2.20.0040.00417.46
8.2.10.0000.00718.00
8.2.00.0000.00817.53
8.1.270.0000.00818.82
8.1.260.0070.00326.35
8.1.250.0080.00028.09
8.1.240.0000.00922.30
8.1.230.0070.00422.69
8.1.220.0000.00817.74
8.1.210.0000.00918.78
8.1.200.0030.00617.36
8.1.190.0080.00017.22
8.1.180.0000.00718.96
8.1.170.0050.00318.36
8.1.160.0040.00418.98
8.1.150.0040.00418.95
8.1.140.0000.00717.40
8.1.130.0000.00717.75
8.1.120.0050.00317.31
8.1.110.0040.00417.41
8.1.100.0000.00817.41
8.1.90.0000.00717.30
8.1.80.0000.00917.43
8.1.70.0000.00717.36
8.1.60.0030.00617.56
8.1.50.0030.00617.34
8.1.40.0040.00417.48
8.1.30.0000.00817.63
8.1.20.0030.00617.64
8.1.10.0000.00817.41
8.1.00.0040.00417.39
8.0.300.0000.00819.89
8.0.290.0040.00416.60
8.0.280.0070.00018.36
8.0.270.0040.00417.23
8.0.260.0060.00017.18
8.0.250.0000.00716.90
8.0.240.0030.00316.93
8.0.230.0000.00716.75
8.0.220.0040.00416.66
8.0.210.0040.00416.83
8.0.200.0070.00016.84
8.0.190.0040.00316.79
8.0.180.0050.00216.87
8.0.170.0050.00316.74
8.0.160.0030.00316.88
8.0.150.0050.00316.74
8.0.140.0030.00416.83
8.0.130.0000.00513.29
8.0.120.0000.00816.81
8.0.110.0040.00416.84
8.0.100.0030.00316.77
8.0.90.0000.00816.74
8.0.80.0070.01516.75
8.0.70.0020.00516.70
8.0.60.0040.00416.87
8.0.50.0050.00216.83
8.0.30.0110.01017.00
8.0.20.0080.01017.40
8.0.10.0000.00716.79
8.0.00.0090.00916.60
7.4.330.0000.00615.09
7.4.320.0060.00016.46
7.4.300.0030.00316.52
7.4.290.0030.00316.53
7.4.280.0080.00016.50
7.4.270.0060.00016.52
7.4.260.0000.00716.34
7.4.250.0040.00416.38
7.4.240.0020.00616.48
7.4.230.0030.00316.48
7.4.220.0120.00616.45
7.4.210.0060.00916.39
7.4.200.0040.00416.50
7.4.160.0040.01116.20
7.4.150.0110.00717.40
7.4.140.0090.00817.86
7.4.130.0040.01316.52
7.4.120.0060.01016.38
7.4.110.0060.01116.36
7.4.100.0120.00416.46
7.4.90.0070.01016.41
7.4.80.0100.00719.39
7.4.70.0060.01116.30
7.4.60.0070.01016.25
7.4.50.0000.00516.30
7.4.40.0000.01616.33
7.4.30.0030.01916.41
7.4.10.0060.01215.04
7.4.00.0100.00614.70
7.3.330.0000.00613.00
7.3.320.0060.00013.14
7.3.310.0070.00016.15
7.3.300.0060.00016.21
7.3.290.0100.00416.21
7.3.280.0090.00816.20
7.3.270.0100.01417.40
7.3.260.0130.00316.22
7.3.250.0100.00616.46
7.3.240.0150.00316.20
7.3.230.0110.00516.39
7.3.210.0140.00316.15
7.3.200.0110.01119.39
7.3.190.0080.00816.53
7.3.180.0030.01316.42
7.3.170.0150.00616.47
7.3.160.0030.01316.15
7.3.130.0040.01514.47
7.3.120.0070.01214.78
7.3.110.0050.01214.72
7.3.100.0050.01014.71
7.3.90.0050.01014.61
7.3.80.0080.00514.50
7.3.70.0040.00514.77
7.3.60.0050.00814.79
7.3.50.0040.00814.81
7.3.40.0100.00414.73
7.3.30.0030.00714.62
7.3.20.0070.00616.24
7.3.10.0060.00816.63
7.3.00.0070.00516.57
7.2.330.0120.01216.38
7.2.320.0100.01016.48
7.2.310.0130.00316.21
7.2.300.0120.00616.43
7.2.290.0130.00316.36
7.2.260.0060.01214.58
7.2.250.0060.01215.10
7.2.240.0060.01314.83
7.2.230.0090.01014.90
7.2.220.0110.00514.89
7.2.210.0080.00614.90
7.2.200.0080.00614.84
7.2.190.0040.00914.88
7.2.180.0050.00914.73
7.2.170.0040.00914.68
7.2.160.0000.00814.77
7.2.150.0090.00616.56
7.2.140.0060.00616.58
7.2.130.0050.00916.74
7.2.120.0070.00816.72
7.2.110.0080.00316.68
7.2.100.0090.00416.84
7.2.90.0080.00616.74
7.2.80.0080.00616.68
7.2.70.0040.00916.76
7.2.60.0070.00416.75
7.2.50.0030.01016.77
7.2.40.0010.01016.81
7.2.30.0040.01016.74
7.2.20.0080.00616.75
7.2.10.0020.01216.76
7.2.00.0070.00617.23
7.1.330.0060.00715.75
7.1.320.0080.00815.74
7.1.310.0030.01115.68
7.1.300.0080.00515.63
7.1.290.0070.00815.59
7.1.280.0050.00915.43
7.1.270.0070.00715.50
7.1.260.0080.00615.69
7.1.250.0030.00815.63
7.1.240.0010.01115.58
7.1.230.0040.00915.70
7.1.220.0000.01215.63
7.1.210.0080.00515.70
7.1.200.0060.00615.68
7.1.190.0070.00415.67
7.1.180.0020.00815.65
7.1.170.0030.00915.69
7.1.160.0040.00415.75
7.1.150.0080.00515.68
7.1.140.0040.00715.49
7.1.130.0040.01115.45
7.1.120.0030.00715.77
7.1.110.0050.00815.88
7.1.100.0040.01116.53
7.1.90.0070.00415.64
7.1.80.0030.01115.67
7.1.70.0110.00516.23
7.1.60.0040.01316.92
7.1.50.0070.00516.06
7.1.40.0070.00715.73
7.1.30.0060.00815.62
7.1.20.0010.01115.45
7.1.10.0090.00715.55
7.1.00.0030.03317.90
7.0.330.0010.00915.16
7.0.320.0050.00715.46
7.0.310.0050.00915.22
7.0.300.0040.00615.18
7.0.290.0070.00615.19
7.0.280.0070.00415.12
7.0.270.0020.00915.16
7.0.260.0000.01115.19
7.0.250.0050.00715.37
7.0.240.0070.00815.27
7.0.230.0000.01415.18
7.0.220.0050.00715.29
7.0.210.0090.00515.33
7.0.200.0030.00815.73
7.0.190.0060.00615.30
7.0.180.0070.00715.18
7.0.170.0070.00315.29
7.0.160.0080.00715.32
7.0.150.0070.00715.18
7.0.140.0060.02117.36
7.0.130.0030.00915.30
7.0.120.0040.00415.39
7.0.110.0040.00715.38
7.0.100.0100.00515.40
7.0.90.0050.00615.29
7.0.80.0030.00815.29
7.0.70.0070.00615.33
7.0.60.0100.02517.01
7.0.50.0070.01916.23
7.0.40.0090.01915.62
7.0.30.0140.02615.61
7.0.20.0120.02315.59
7.0.10.0070.02215.66
7.0.00.0090.02115.54
5.6.400.0090.00014.05
5.6.390.0040.00814.01
5.6.380.0030.01014.51
5.6.370.0080.00814.29
5.6.360.0040.00614.26
5.6.350.0020.00914.04
5.6.340.0070.00314.10
5.6.330.0070.00613.94
5.6.320.0080.00614.02
5.6.310.0070.00714.42
5.6.300.0030.01114.17
5.6.290.0030.00914.26
5.6.280.0060.02916.41
5.6.270.0070.00714.09
5.6.260.0030.01314.09
5.6.250.0050.00714.21
5.6.240.0050.00914.25
5.6.230.0060.01114.06
5.6.220.0080.00514.26
5.6.210.0090.02816.40
5.6.200.0090.02815.45
5.6.190.0110.01916.23
5.6.180.0100.01916.29
5.6.170.0140.01716.09
5.6.160.0050.03416.36
5.6.150.0050.03215.38
5.6.140.0050.03315.46
5.6.130.0060.02615.41
5.6.120.0130.01116.59
5.6.110.0100.02616.38
5.6.100.0080.03016.41
5.6.90.0060.01916.51
5.6.80.0090.02816.13
5.6.70.0040.00914.20
5.6.60.0090.00814.12
5.6.50.0050.00914.14
5.6.40.0050.00814.00
5.6.30.0050.00814.17
5.6.20.0050.00814.05
5.6.10.0080.00514.10
5.6.00.0060.00414.08
5.5.380.0070.00212.64
5.5.370.0100.00312.71
5.5.360.0110.00112.59
5.5.350.0110.02715.22
5.5.340.0020.01814.40
5.5.330.0030.01915.34
5.5.320.0120.02515.22
5.5.310.0120.02615.20
5.5.300.0030.03514.39
5.5.290.0020.03314.49
5.5.280.0060.01715.42
5.5.270.0050.02415.30
5.5.260.0060.02115.39
5.5.250.0020.03515.34
5.5.240.0060.02815.14
5.5.230.0070.00812.60
5.5.220.0030.00912.69
5.5.210.0090.00312.55
5.5.200.0080.00312.60
5.5.190.0040.00712.66
5.5.180.0090.00412.62
5.5.170.0030.00712.64
5.5.160.0010.01112.53
5.5.150.0050.00712.57
5.5.140.0010.00812.45
5.5.130.0020.01112.55
5.5.120.0040.00412.67
5.5.110.0000.01012.60
5.5.100.0050.00712.51
5.5.90.0080.00512.53
5.5.80.0030.00612.57
5.5.70.0000.01312.50
5.5.60.0060.00612.58
5.5.50.0030.00912.48
5.5.40.0080.00512.66
5.5.30.0060.00512.66
5.5.20.0080.00512.49
5.5.10.0030.00612.48
5.5.00.0080.00312.40
5.4.450.0240.02313.82
5.4.440.0100.02313.65
5.4.430.0050.02513.75
5.4.420.0110.01913.80
5.4.410.0110.02013.69
5.4.400.0080.02213.75
5.4.390.0170.02313.62
5.4.380.0130.02913.46
5.4.370.0160.02613.52
5.4.360.0130.02113.53
5.4.350.0130.02213.46
5.4.340.0110.02313.53
5.4.330.0060.00411.00
5.4.320.0200.02513.41
5.4.310.0130.02513.54
5.4.300.0110.02213.52
5.4.290.0160.02813.55
5.4.280.0120.02613.45
5.4.270.0160.02213.54
5.4.260.0110.02813.41
5.4.250.0160.02613.53
5.4.240.0120.02913.52
5.4.230.0100.02113.54
5.4.220.0160.02713.54
5.4.210.0160.01913.43
5.4.200.0110.02112.93
5.4.190.0150.01913.52
5.4.180.0110.02113.58
5.4.170.0110.01913.53
5.4.160.0120.02113.59
5.4.150.0090.02413.59
5.4.140.0110.02312.70
5.4.130.0130.02212.66
5.4.120.0100.02312.71
5.4.110.0120.01912.84
5.4.100.0080.02312.78
5.4.90.0130.02612.89
5.4.80.0130.01912.69
5.4.70.0120.02112.75
5.4.60.0110.02112.76
5.4.50.0120.02012.73
5.4.40.0120.02212.75
5.4.30.0080.02612.70
5.4.20.0110.02112.80
5.4.10.0100.02112.66
5.4.00.0090.02112.62
5.3.290.0120.03312.87
5.3.280.0130.03212.86
5.3.270.0220.03212.89
5.3.260.0120.03312.92
5.3.250.0160.02812.86
5.3.240.0160.02612.88
5.3.230.0180.02712.88
5.3.220.0180.02712.87
5.3.210.0150.03212.92
5.3.200.0130.02812.82
5.3.190.0190.02412.83
5.3.180.0210.02512.89
5.3.170.0170.03212.92
5.3.160.0270.02012.84
5.3.150.0150.02912.82
5.3.140.0080.03112.85
5.3.130.0110.03412.89
5.3.120.0170.02912.90
5.3.110.0180.03312.86
5.3.100.0170.02412.60
5.3.90.0140.02812.59
5.3.80.0130.02712.56
5.3.70.0130.03012.59
5.3.60.0120.02812.56
5.3.50.0180.02712.52
5.3.40.0140.02612.56
5.3.30.0080.02912.54
5.3.20.0160.02612.47
5.3.10.0150.02512.41
5.3.00.0170.03012.36
5.2.170.0080.02811.15
5.2.160.0050.03111.24
5.2.150.0100.02711.24
5.2.140.0120.02311.12
5.2.130.0110.02111.16
5.2.120.0110.02111.12
5.2.110.0130.02611.13
5.2.100.0100.02311.20
5.2.90.0110.02111.09
5.2.80.0100.02311.11
5.2.70.0110.02311.16
5.2.60.0120.02811.10
5.2.50.0120.02511.09
5.2.40.0120.02211.11
5.2.30.0070.02611.07
5.2.20.0120.01811.05
5.2.10.0080.02011.06
5.2.00.0090.02210.94
5.1.60.0100.01810.60
5.1.50.0080.01910.57
5.1.40.0070.02110.63
5.1.30.0120.02410.77
5.1.20.0080.02110.76
5.1.10.0080.02110.65
5.1.00.0050.02410.63
5.0.50.0020.0199.89
5.0.40.0050.0159.82
5.0.30.0050.0259.70
5.0.20.0030.0199.70
5.0.10.0050.0209.67
5.0.00.0090.0189.66
4.4.90.0030.0158.53
4.4.80.0050.0138.49
4.4.70.0020.0158.53
4.4.60.0080.0108.52
4.4.50.0080.0108.50
4.4.40.0020.0218.49
4.4.30.0070.0118.54
4.4.20.0080.0128.56
4.4.10.0030.0188.53
4.4.00.0100.0188.54
4.3.110.0070.0108.48
4.3.100.0050.0128.50
4.3.90.0050.0128.48
4.3.80.0060.0188.52
4.3.70.0060.0108.53
4.3.60.0030.0138.54
4.3.50.0080.0108.50
4.3.40.0030.0198.45
4.3.30.0070.0087.88
4.3.20.0040.0127.89
4.3.10.0030.0127.84
4.3.00.0060.0089.23

preferences:
58.31 ms | 400 KiB | 5 Q