3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "C#maj7"; $qualityVal = ""; if (true) { $qualityVal += substr($string, 1); } echo substr($string, 2); ?>

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)
8.3.60.0140.00418.68
8.3.50.0120.00821.93
8.3.40.0160.00318.98
8.3.30.0070.00720.27
8.3.20.0070.00020.04
8.3.10.0040.00421.98
8.3.00.0070.00022.32
8.2.180.0060.01516.63
8.2.170.0030.01022.96
8.2.160.0100.00320.36
8.2.150.0040.00425.66
8.2.140.0000.00924.66
8.2.130.0040.00426.16
8.2.120.0000.00719.66
8.2.110.0000.00922.18
8.2.100.0110.00019.21
8.2.90.0000.00719.14
8.2.80.0040.00419.21
8.2.70.0040.00417.59
8.2.60.0000.00817.89
8.2.50.0000.00818.07
8.2.40.0050.00318.21
8.2.30.0000.00718.05
8.2.20.0090.00317.71
8.2.10.0000.00717.78
8.2.00.0060.00317.64
8.1.280.0090.00625.92
8.1.270.0120.00324.66
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0040.00423.87
8.1.230.0030.00719.09
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0040.00417.35
8.1.190.0030.00617.29
8.1.180.0080.00019.01
8.1.170.0050.00318.48
8.1.160.0000.00822.05
8.1.150.0040.00718.55
8.1.140.0000.00817.43
8.1.130.0070.00017.82
8.1.120.0040.00417.29
8.1.110.0030.00617.29
8.1.100.0030.00417.27
8.1.90.0030.00517.44
8.1.80.0040.00417.38
8.1.70.0030.00317.32
8.1.60.0060.00317.39
8.1.50.0040.00417.43
8.1.40.0070.00017.42
8.1.30.0000.00817.56
8.1.20.0000.00817.55
8.1.10.0040.00417.59
8.1.00.0000.00817.51
8.0.300.0040.00418.77
8.0.290.0040.00417.04
8.0.280.0040.00418.25
8.0.270.0000.00717.18
8.0.260.0000.00616.72
8.0.250.0030.00316.86
8.0.240.0030.00316.98
8.0.230.0040.00416.98
8.0.220.0070.00016.79
8.0.210.0030.00516.88
8.0.200.0000.00716.87
8.0.190.0000.00716.83
8.0.180.0070.00016.92
8.0.170.0030.00516.81
8.0.160.0040.00416.91
8.0.150.0000.00716.75
8.0.140.0030.00416.89
8.0.130.0060.00013.30
8.0.120.0000.00716.75
8.0.110.0000.00716.78
8.0.100.0050.00216.74
8.0.90.0040.00416.92
8.0.80.0090.00616.86
8.0.70.0040.00416.68
8.0.60.0040.00416.86
8.0.50.0000.00716.92
8.0.30.0140.00917.07
8.0.20.0110.00917.40
8.0.10.0030.00516.86
8.0.00.0110.01416.92
7.4.330.0050.00015.00
7.4.320.0000.00616.44
7.4.300.0050.00216.52
7.4.290.0000.00816.39
7.4.280.0080.00416.49
7.4.270.0030.00316.43
7.4.260.0070.00216.44
7.4.250.0040.00416.49
7.4.240.0020.00516.41
7.4.230.0030.00316.51
7.4.220.0100.00716.46
7.4.210.0080.00716.47
7.4.200.0000.00716.57
7.4.190.0030.00616.62
7.4.160.0100.01016.35
7.4.150.0140.00417.40
7.4.140.0100.00717.86
7.4.130.0070.01016.38
7.4.120.0090.00816.46
7.4.110.0120.00616.39
7.4.100.0110.00716.42
7.4.90.0090.01316.61
7.4.80.0160.00519.39
7.4.70.0030.01216.48
7.4.60.0090.00616.50
7.4.50.0060.00316.54
7.4.40.0070.01022.77
7.4.30.0130.00316.37
7.4.00.0070.01014.75
7.3.330.0060.00012.95
7.3.320.0000.00513.18
7.3.310.0060.00016.03
7.3.300.0040.00416.19
7.3.290.0120.00316.18
7.3.280.0100.00616.20
7.3.270.0100.00717.40
7.3.260.0140.02416.34
7.3.250.0120.00516.39
7.3.240.0030.01316.22
7.3.230.0130.00316.39
7.3.210.0110.00616.39
7.3.200.0100.00719.39
7.3.190.0060.01216.19
7.3.180.0090.00616.22
7.3.170.0120.00316.27
7.3.160.0060.00916.26
7.3.120.0060.00614.76
7.2.330.0150.01116.21
7.2.320.0110.00716.31
7.2.310.0100.00616.56
7.2.300.0080.01116.40
7.2.290.0070.01016.51
7.2.60.0040.00816.76
7.2.00.0080.00819.04
7.1.200.0060.00615.76
7.1.100.0040.00418.21
7.1.70.0030.00717.26
7.1.60.0030.00919.43
7.1.50.0220.01934.89
7.1.00.0100.02722.36
7.0.200.0000.00816.61
7.0.140.0030.07322.07
7.0.60.0170.05719.91
7.0.50.0000.04717.77
7.0.40.0100.04320.29
7.0.30.0200.04020.09
7.0.20.0300.04320.00
7.0.10.0230.06720.18
7.0.00.0070.08320.15
5.6.280.0000.07720.89
5.6.210.0100.05020.60
5.6.200.0030.09018.13
5.6.190.0070.07320.63
5.6.180.0200.03720.35
5.6.170.0300.06020.48
5.6.160.0000.04720.46
5.6.150.0130.07318.18
5.6.140.0030.05318.09
5.6.130.0130.07718.20
5.6.120.0070.08320.99
5.6.110.0100.07320.89
5.6.100.0070.08720.97
5.6.90.0130.06320.93
5.6.80.0100.07020.50
5.6.70.0270.04020.42
5.5.350.0070.08020.33
5.5.340.0070.08317.89
5.5.330.0100.06320.25
5.5.320.0130.06020.24
5.5.310.0330.07720.30
5.5.300.0100.07717.98
5.5.290.0070.06018.00
5.5.280.0170.07020.77
5.5.270.0130.04320.84
5.5.260.0070.04720.83
5.5.250.0100.07720.71
5.5.240.0030.06020.36
5.4.450.3030.04019.49
5.4.440.3030.04019.38
5.4.430.3100.03719.13
5.4.420.2970.04019.54
5.4.410.3170.04319.33
5.4.400.3030.03719.23
5.4.390.2770.03719.07
5.4.380.3000.04018.93
5.4.370.3130.03319.25
5.4.360.3100.03719.13
5.4.350.2700.04018.93
5.4.340.2770.03718.95
5.4.320.3100.03719.16
5.4.310.3070.04319.11
5.4.300.2870.04018.88
5.4.290.3100.04018.93
5.4.280.2830.03318.80
5.4.270.3270.04319.13
5.4.260.3300.04319.25
5.4.250.2900.03019.24
5.4.240.3070.03719.09
5.4.230.3130.03718.93
5.4.220.2730.04319.15
5.4.210.2830.03319.13
5.4.200.2770.03719.05
5.4.190.2800.03319.09
5.4.180.3070.03718.87
5.4.170.3270.04718.92
5.4.160.2930.03719.06
5.4.150.3170.04018.88
5.4.140.2900.04016.43
5.4.130.3470.04016.20
5.4.120.3430.04716.23
5.4.110.0000.04016.30
5.4.100.0130.06316.46
5.4.90.0030.03716.48
5.4.80.1470.03316.17
5.4.70.2970.03716.37
5.4.60.2970.03316.40
5.4.50.3100.03016.41
5.4.40.3030.03016.36
5.4.30.3130.04016.36
5.4.20.3400.04716.36
5.4.10.3170.03016.16
5.4.00.2870.03715.77
5.3.290.2930.04314.50
5.3.280.3000.04014.43
5.3.270.3100.03714.58
5.3.260.3030.03314.51
5.3.250.3030.03314.51
5.3.240.3470.03014.61
5.3.230.3030.03714.61
5.3.220.3070.04014.61
5.3.210.3170.03714.68
5.3.200.3370.04014.59
5.3.190.3070.04314.40
5.3.180.3000.04014.42
5.3.170.2770.04014.39
5.3.160.2800.03714.39
5.3.150.3130.03714.65
5.3.140.3130.03314.60
5.3.130.3030.04014.50
5.3.120.1130.04314.40
5.3.110.0130.06014.59
5.3.100.0100.07013.88
5.3.90.0270.03713.86
5.3.80.2830.03713.96
5.3.70.3100.04013.89
5.3.60.3130.03014.02
5.3.50.3170.03313.85
5.3.40.3030.04313.80
5.3.30.3170.02714.00
5.3.20.2970.03313.63
5.3.10.2830.03313.46
5.3.00.2770.03713.48
5.2.170.2500.03711.05
5.2.160.2370.03011.01
5.2.150.2470.02711.01
5.2.140.2370.02711.01
5.2.130.2270.02711.15
5.2.120.2270.03011.01
5.2.110.2330.03011.15
5.2.100.2400.03711.01
5.2.90.2900.02711.14
5.2.80.2200.03011.25
5.2.70.2130.03311.11
5.2.60.2230.03011.06
5.2.50.2100.02711.01
5.2.40.1630.02311.01
5.2.30.0300.03011.01
5.2.20.0070.02311.01
5.2.10.0000.03011.02
5.2.00.0070.02311.01
5.1.60.0770.02311.01
5.1.50.1300.02011.01
5.1.40.1670.02311.01
5.1.30.1830.02711.01
5.1.20.1930.02311.01
5.1.10.2000.02311.01
5.1.00.1730.01011.01
5.0.50.0570.01711.01
5.0.40.0800.02011.01
5.0.30.0900.03011.01
5.0.20.1070.02311.01
5.0.10.1000.02011.01
5.0.00.1130.03711.01
4.4.90.0900.01311.01
4.4.80.0900.01711.01
4.4.70.0930.01311.01
4.4.60.0970.01011.01
4.4.50.1170.01711.01
4.4.40.0970.02311.01
4.4.30.1130.01711.01
4.4.20.1100.01311.01
4.4.10.0970.01311.01
4.4.00.1300.03011.01
4.3.110.1170.02011.01
4.3.100.1100.01711.01
4.3.90.1130.01311.01
4.3.80.1000.02311.01
4.3.70.1170.01711.01
4.3.60.1100.02011.01
4.3.50.1170.02011.01
4.3.40.1130.03311.01
4.3.30.0530.01011.01
4.3.20.0600.01711.01
4.3.10.0630.02711.01
4.3.00.0430.01711.01

preferences:
61.93 ms | 400 KiB | 5 Q