3v4l.org

run code in 300+ PHP versions simultaneously
<?php strtolower(parent);

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)
8.3.40.0110.00418.67
8.3.30.0030.01020.23
8.3.20.0040.00420.26
8.3.10.0080.00021.80
8.3.00.0000.00722.47
8.2.170.0120.00922.96
8.2.160.0030.01322.08
8.2.150.0000.00924.18
8.2.140.0000.00824.66
8.2.130.0130.00726.16
8.2.120.0040.00419.66
8.2.110.0100.00020.31
8.2.100.0040.00817.91
8.2.90.0080.00018.91
8.2.80.0050.00219.42
8.2.70.0000.00817.50
8.2.60.0000.00818.03
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0000.00818.10
8.2.20.0000.00717.77
8.2.10.0040.00417.72
8.2.00.0070.00317.74
8.1.270.0080.00024.66
8.1.260.0050.00326.35
8.1.250.0070.00328.09
8.1.240.0030.00622.10
8.1.230.0110.00022.04
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00817.36
8.1.190.0040.00417.43
8.1.180.0060.00319.13
8.1.170.0000.00818.51
8.1.160.0020.00522.16
8.1.150.0040.00418.58
8.1.140.0030.00517.29
8.1.130.0030.00317.88
8.1.120.0000.00717.43
8.1.110.0000.00817.30
8.1.100.0070.00017.39
8.1.90.0070.00017.37
8.1.80.0070.00017.44
8.1.70.0000.00817.32
8.1.60.0030.00517.41
8.1.50.0030.00617.44
8.1.40.0040.00417.35
8.1.30.0060.00317.51
8.1.20.0060.00317.60
8.1.10.0060.00317.41
8.1.00.0000.00717.34
8.0.300.0000.00718.77
8.0.290.0000.00717.05
8.0.280.0070.00018.43
8.0.270.0030.00517.13
8.0.260.0030.00316.86
8.0.250.0050.00216.89
8.0.240.0040.00416.98
8.0.230.0000.00717.04
8.0.220.0070.00016.96
8.0.210.0000.00716.98
8.0.200.0000.00716.87
8.0.190.0030.00316.86
8.0.180.0040.00416.96
8.0.170.0080.00016.98
8.0.160.0000.00816.85
8.0.150.0030.00316.88
8.0.140.0040.00416.80
8.0.130.0000.00613.36
8.0.120.0040.00416.90
8.0.110.0040.00416.96
8.0.100.0040.00416.93
8.0.90.0030.00316.82
8.0.80.0110.01116.92
8.0.70.0000.00817.00
8.0.60.0000.00716.84
8.0.50.0040.00416.91
8.0.30.0090.01317.04
8.0.20.0120.00617.40
8.0.10.0000.00716.96
8.0.00.0090.00916.73
7.4.330.0060.00015.00
7.4.320.0030.00316.47
7.4.300.0060.00016.37
7.4.290.0040.00416.33
7.4.280.0000.00616.52
7.4.270.0030.00316.49
7.4.260.0040.00416.34
7.4.250.0040.00416.43
7.4.240.0050.00316.43
7.4.230.0030.00316.30
7.4.220.0110.01216.59
7.4.210.0090.00716.48
7.4.200.0050.00216.53
7.4.190.0000.00716.55
7.4.160.0060.00916.52
7.4.150.0110.00717.40
7.4.140.0070.01417.86
7.4.130.0110.00616.60
7.4.120.0090.00816.26
7.4.110.0090.00916.46
7.4.100.0190.00016.45
7.4.90.0200.01216.61
7.4.80.0070.01119.39
7.4.70.0140.00316.54
7.4.60.0160.00016.28
7.4.50.0080.00016.33
7.4.40.0060.00922.77
7.4.30.0140.00316.57
7.4.10.0100.01014.81
7.4.00.0060.00814.76
7.3.330.0030.00312.92
7.3.320.0000.00513.17
7.3.310.0000.00716.14
7.3.300.0000.00616.23
7.3.290.0030.01116.33
7.3.280.0060.01016.15
7.3.270.0070.01117.40
7.3.260.0130.00616.23
7.3.250.0110.00916.18
7.3.240.0100.01316.25
7.3.230.0120.00616.39
7.3.210.0090.01216.33
7.3.200.0120.00619.39
7.3.190.0110.01116.46
7.3.180.0100.01016.48
7.3.170.0140.00716.30
7.3.160.0150.00016.25
7.3.130.0030.01414.54
7.3.120.0060.01014.74
7.3.110.0080.00914.61
7.3.100.0040.00914.69
7.3.90.0050.01014.65
7.3.80.0040.01214.58
7.3.70.0080.00514.55
7.3.60.0040.01014.56
7.3.50.0040.00814.65
7.3.40.0080.00314.71
7.3.30.0070.00514.43
7.3.20.0060.00716.54
7.3.10.0080.00516.54
7.3.00.0060.00716.46
7.2.330.0000.01716.43
7.2.320.0090.00916.54
7.2.310.0140.00316.39
7.2.300.0130.00616.29
7.2.290.0080.00816.48
7.2.260.0030.01614.68
7.2.250.0050.01114.82
7.2.240.0040.01414.78
7.2.230.0090.00614.67
7.2.220.0060.00814.83
7.2.210.0060.00914.91
7.2.200.0090.00614.83
7.2.190.0010.01014.87
7.2.180.0080.00714.84
7.2.170.0030.01114.86
7.2.160.0080.00614.93
7.2.150.0100.00616.60
7.2.140.0070.00716.83
7.2.130.0060.00916.46
7.2.120.0080.00416.66
7.2.110.0110.00416.74
7.2.100.0030.00616.60
7.2.90.0080.00816.38
7.2.80.0040.00816.73
7.2.70.0030.01416.68
7.2.60.0120.00316.60
7.2.50.0030.00616.94
7.2.40.0000.01116.62
7.2.30.0030.00616.82
7.2.20.0080.00416.82
7.2.10.0040.00716.46
7.2.00.0100.00316.71
7.1.330.0110.00315.63
7.1.320.0050.01015.68
7.1.310.0040.01015.67
7.1.300.0060.00715.68
7.1.290.0030.00915.72
7.1.280.0060.01015.70
7.1.270.0060.00915.65
7.1.260.0050.00715.67
7.1.250.0120.00415.39
7.1.240.0080.00615.30
7.1.230.0040.01115.80
7.1.220.0030.01315.39
7.1.210.0120.00415.77
7.1.200.0080.00715.52
7.1.190.0030.00615.63
7.1.180.0100.00315.60
7.1.170.0080.00315.67
7.1.160.0030.01015.38
7.1.150.0070.00715.43
7.1.140.0030.00615.71
7.1.130.0050.00515.58
7.1.120.0060.00315.62
7.1.110.0050.00315.45
7.1.100.0030.01315.52
7.1.90.0030.00615.71
7.1.80.0040.00415.76
7.1.70.0070.00516.32
7.1.60.0030.01617.54
7.1.50.0090.00516.26
7.1.40.0030.01415.76
7.1.30.0070.00715.64
7.1.20.0090.00615.54
7.1.10.0000.00815.45
7.1.00.0030.02519.05
7.0.330.0100.00015.09
7.0.320.0030.00615.35
7.0.310.0000.00815.37
7.0.300.0060.00615.25
7.0.290.0030.00915.05
7.0.280.0000.01215.13
7.0.270.0040.01115.18
7.0.260.0090.00015.44
7.0.250.0000.01115.14
7.0.240.0040.00815.28
7.0.230.0110.00315.22
7.0.220.0070.00415.36
7.0.210.0090.00615.06
7.0.200.0020.00615.98
7.0.190.0040.01215.36
7.0.180.0040.01115.41
7.0.170.0130.00315.23
7.0.160.0060.00615.15
7.0.150.0030.01015.30
7.0.140.0100.03518.58
7.0.130.0060.01015.05
7.0.120.0130.00315.14
7.0.110.0070.00315.39
7.0.100.0110.00415.44
7.0.90.0060.00915.24
7.0.80.0030.01015.36
7.0.70.0000.00815.44
7.0.60.0060.04417.54
7.0.50.0000.02616.35
7.0.40.0130.04016.62
7.0.30.0180.03816.69
7.0.20.0170.02916.57
7.0.10.0180.03716.69
7.0.00.0090.02016.76
5.6.400.0030.00614.16
5.6.390.0080.00414.39
5.6.380.0000.01314.33
5.6.370.0000.01314.04
5.6.360.0000.00914.02
5.6.350.0030.00914.13
5.6.340.0070.00313.95
5.6.330.0060.00613.89
5.6.320.0100.00314.29
5.6.310.0130.00014.27
5.6.300.0070.00414.35
5.6.290.0000.01514.06
5.6.280.0030.04417.77
5.6.270.0030.00814.18
5.6.260.0090.00614.11
5.6.250.0040.01114.18
5.6.240.0070.01014.33
5.6.230.0030.01413.84
5.6.220.0030.00613.77
5.6.210.0060.02617.36
5.6.200.0060.04116.09
5.6.190.0120.04217.13
5.6.180.0150.02317.19
5.6.170.0130.04517.22
5.6.160.0060.02317.13
5.6.150.0100.01816.08
5.6.140.0040.02316.20
5.6.130.0050.04516.19
5.6.120.0080.02817.61
5.6.110.0050.04017.48
5.6.100.0080.04717.61
5.6.90.0080.03617.61
5.6.80.0070.04017.14
5.6.70.0130.03017.28
5.6.60.0040.01513.79
5.6.50.0030.00914.09
5.6.40.0040.00713.97
5.6.30.0060.00914.13
5.6.20.0060.00913.83
5.6.10.0040.00714.02
5.6.00.0120.00314.09
5.5.380.0000.01413.86
5.5.370.0000.01513.91
5.5.360.0040.01113.91
5.5.350.0140.03417.29
5.5.340.0040.02716.09
5.5.330.0030.04917.19
5.5.320.0120.04717.29
5.5.310.0120.03017.14
5.5.300.0060.03715.81
5.5.290.0050.02215.98
5.5.280.0090.04217.27
5.5.270.0050.02417.41
5.5.260.0030.04317.55
5.5.250.0060.03017.23
5.5.240.0040.02617.02
5.5.230.0120.00613.97
5.5.220.0040.01513.85
5.5.210.0120.00013.80
5.5.200.0030.01013.80
5.5.190.0030.00613.97
5.5.180.0060.00913.76
5.5.170.0000.01213.96
5.5.160.0070.00713.86
5.5.150.0000.01014.21
5.5.140.0000.01414.00
5.5.130.0030.00913.64
5.5.120.0060.00614.23
5.5.110.0100.00314.13
5.5.100.0030.00813.92
5.5.90.0000.01313.73
5.5.80.0040.01213.97
5.5.70.0040.00814.00
5.5.60.0060.00614.00
5.5.50.0030.01013.99
5.5.40.0100.00313.91
5.5.30.0070.01014.13
5.5.20.0030.01014.16
5.5.10.0030.00913.86
5.5.00.0060.00614.00
5.4.450.0190.03115.00
5.4.440.0500.03115.16
5.4.430.0100.03015.24
5.4.420.0480.02815.02
5.4.410.0050.03214.75
5.4.400.0250.02814.70
5.4.390.0230.03314.74
5.4.380.0130.03114.61
5.4.370.0160.02414.70
5.4.360.0150.02314.67
5.4.350.0030.03511.33
5.4.340.0040.02711.24
5.4.330.0030.00310.58
5.4.320.0120.04611.46
5.4.310.0050.02511.63
5.4.300.0060.02511.62
5.4.290.0090.02711.51
5.4.280.0040.02811.38
5.4.270.0060.02211.57
5.4.260.0040.02111.51
5.4.250.0070.02011.62
5.4.240.0050.03514.87
5.4.230.0100.02114.74
5.4.220.0050.03014.80
5.4.210.0030.03214.67
5.4.200.0020.03314.73
5.4.190.0050.02714.77
5.4.180.0080.02614.71
5.4.170.0030.03014.69
5.4.160.0070.03014.90
5.4.150.0140.02314.60
5.4.140.0030.03813.54
5.4.130.0080.02613.40
5.4.120.0040.02813.50
5.4.110.0060.02513.80
5.4.100.0050.02813.66
5.4.90.0060.02513.71
5.4.80.0050.02913.59
5.4.70.0070.02713.56
5.4.60.0080.02513.49
5.4.50.0080.02413.38
5.4.40.0030.03013.66
5.4.30.0070.02513.59
5.4.20.0130.02013.51
5.4.10.0050.02913.53
5.4.00.0070.02713.23
5.3.290.0050.02711.55
5.3.280.0070.02512.44
5.3.270.0100.02612.41
5.3.260.0080.02512.46
5.3.250.0060.02512.41
5.3.240.0060.02912.33
5.3.230.0110.02512.36
5.3.220.0030.03012.24
5.3.210.0100.02312.32
5.3.200.0030.03612.30
5.3.190.0010.04112.55
5.3.180.0060.03012.47
5.3.170.0050.02712.49
5.3.160.0050.03512.56
5.3.150.0100.02312.49
5.3.140.0030.02812.22
5.3.130.0030.02912.21
5.3.120.0030.03212.45
5.3.110.0070.03612.33
5.3.100.0120.02412.19
5.3.90.0070.02712.06
5.3.80.0050.03011.95
5.3.70.0070.02812.15
5.3.60.0030.02812.01
5.3.50.0070.02412.03
5.3.40.0050.02712.13
5.3.30.0020.02812.04
5.3.20.0080.02311.88
5.3.10.0090.02311.77
5.3.00.0060.02611.81
5.2.170.0070.04011.14
5.2.160.0100.04711.16
5.2.150.0100.03711.14
5.2.140.0130.05011.15
5.2.130.0100.03311.10
5.2.120.0030.04011.25
5.2.110.0170.03011.19
5.2.100.0100.03311.02
5.2.90.0100.03711.18
5.2.80.0070.04011.20
5.2.70.0100.04311.18
5.2.60.0100.05311.05
5.2.50.0070.04011.03
5.2.40.0030.04010.88
5.2.30.0100.03310.86
5.2.20.0030.04010.79
5.2.10.0030.04010.61
5.2.00.0070.04710.79
5.1.60.0070.03010.05
5.1.50.0070.0309.91
5.1.40.0000.03710.05
5.1.30.0070.03310.21
5.1.20.0030.04010.28
5.1.10.0130.04010.02
5.1.00.0100.0339.93
5.0.50.0100.0238.45
5.0.40.0000.0308.42
5.0.30.0030.0438.15
5.0.20.0030.0338.41
5.0.10.0000.0308.39
5.0.00.0000.0438.24
4.4.90.0000.0236.06
4.4.80.0030.0206.04
4.4.70.0030.0205.93
4.4.60.0070.0175.77
4.4.50.0000.0235.75
4.4.40.0000.0405.79
4.4.30.0030.0205.76
4.4.20.0030.0205.79
4.4.10.0030.0205.90
4.4.00.0030.0335.92
4.3.110.0100.0135.83
4.3.100.0100.0175.68
4.3.90.0030.0305.80
4.3.80.0000.0335.76
4.3.70.0030.0175.64
4.3.60.0130.0075.68
4.3.50.0030.0205.80
4.3.40.0000.0475.79
4.3.30.0030.0274.46
4.3.20.0000.0234.43
4.3.10.0070.0204.35
4.3.00.0130.0206.88

preferences:
40.77 ms | 400 KiB | 5 Q