3v4l.org

run code in 300+ PHP versions simultaneously
<?php header('Content-Type: text/plain'); $s = "abcdefghi"; $p = 4; $n = 3; $p1 = $p-1; $s[$p1] = ''; while(--$n) { $s[++$p1] = ''; } echo $s;

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)
8.3.60.0180.00016.75
8.3.50.0130.00818.11
8.3.40.0080.00818.66
8.3.30.0120.00418.87
8.3.20.0030.00518.95
8.3.10.0090.00020.46
8.3.00.0040.00419.33
8.2.180.0090.00618.66
8.2.170.0070.00722.96
8.2.160.0130.00320.69
8.2.150.0030.00624.18
8.2.140.0030.00624.66
8.2.130.0000.00926.16
8.2.120.0070.00021.13
8.2.110.0060.00321.07
8.2.100.0040.00817.79
8.2.90.0000.00719.36
8.2.80.0080.00020.96
8.2.70.0050.00517.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0000.00818.03
8.2.30.0000.00718.04
8.2.20.0060.00617.48
8.2.10.0000.00817.68
8.2.00.0060.00317.70
8.1.280.0100.01025.92
8.1.270.0080.00023.99
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00321.31
8.1.230.0040.00720.89
8.1.220.0090.00017.80
8.1.210.0060.00318.93
8.1.200.0000.00817.35
8.1.190.0040.00417.53
8.1.180.0060.00318.10
8.1.170.0070.00018.84
8.1.160.0040.00418.95
8.1.150.0030.00618.54
8.1.140.0040.00417.57
8.1.130.0070.00017.83
8.1.120.0030.00317.54
8.1.110.0040.00417.42
8.1.100.0030.00317.46
8.1.90.0000.00717.36
8.1.80.0040.00417.36
8.1.70.0000.00817.42
8.1.60.0000.00717.60
8.1.50.0040.00417.44
8.1.40.0040.00417.51
8.1.30.0100.00017.71
8.1.20.0030.00617.68
8.1.10.0000.00817.55
8.1.00.0070.00017.38
8.0.300.0040.00420.09
8.0.290.0030.00316.75
8.0.280.0000.00818.32
8.0.270.0070.00017.20
8.0.260.0060.00016.93
8.0.250.0040.00417.04
8.0.240.0080.00016.96
8.0.230.0030.00316.98
8.0.220.0000.00716.86
8.0.210.0000.01116.91
8.0.200.0030.00617.01
8.0.190.0070.00017.02
8.0.180.0040.00416.88
8.0.170.0040.00416.88
8.0.160.0040.00417.03
8.0.150.0060.00316.92
8.0.140.0120.00016.90
8.0.130.0030.00313.41
8.0.120.0000.00816.90
8.0.110.0070.00016.80
8.0.100.0040.00416.93
8.0.90.0040.00416.83
8.0.80.0090.00616.90
8.0.70.0000.00716.83
8.0.60.0040.00416.82
8.0.50.0000.00716.92
8.0.30.0170.00317.20
8.0.20.0110.00817.18
8.0.10.0040.00417.14
8.0.00.0050.01516.69
7.4.330.0050.00013.11
7.4.320.0060.00016.65
7.4.300.0000.00716.61
7.4.290.0030.00316.52
7.4.280.0050.00516.45
7.4.270.0040.00416.43
7.4.260.0030.00313.28
7.4.250.0040.00416.51
7.4.240.0030.00316.61
7.4.230.0060.00016.58
7.4.220.0060.01216.66
7.4.210.0130.00716.55
7.4.200.0040.00316.62
7.4.190.0030.00316.76
7.4.160.0140.00716.45
7.4.150.0130.00616.58
7.4.140.0120.01216.45
7.4.130.0070.01416.48
7.4.120.0120.00616.53
7.4.110.0070.01016.49
7.4.100.0060.01216.51
7.4.90.0160.00316.56
7.4.80.0090.00819.39
7.4.70.0130.00316.62
7.4.60.0120.00316.60
7.4.50.0030.00616.23
7.4.40.0110.00216.54
7.4.30.0080.00816.43
7.4.00.0030.01214.66
7.3.330.0030.00313.19
7.3.320.0050.00013.35
7.3.310.0070.00016.43
7.3.300.0030.00316.41
7.3.290.0080.00816.42
7.3.280.0070.01016.38
7.3.270.0180.00016.34
7.3.260.0090.01016.29
7.3.250.0130.00716.66
7.3.240.0100.00616.36
7.3.230.0150.00316.61
7.3.210.0030.01516.41
7.3.200.0060.01016.35
7.3.190.0060.01216.40
7.3.180.0130.00316.45
7.3.170.0100.00716.30
7.3.160.0060.01216.45
7.3.120.0100.00615.01
7.2.330.0040.01316.50
7.2.320.0080.01516.67
7.2.310.0100.00716.31
7.2.300.0090.00916.69
7.2.290.0130.00416.51
7.2.60.0080.00816.94
7.2.00.0030.00919.48
7.1.200.0040.00715.70
7.1.100.0000.01418.27
7.1.70.0000.00717.09
7.1.60.0090.01519.30
7.1.50.0130.00634.89
7.1.00.0030.04322.27
7.0.200.0070.00016.82
7.0.140.0000.07721.98
7.0.120.0030.07321.96
7.0.60.0070.05719.82
7.0.50.0070.07317.86
7.0.40.0030.06319.99
7.0.30.0500.03720.21
7.0.20.0230.08020.13
7.0.10.0230.03720.04
7.0.00.0030.05020.17
5.6.280.0000.07721.07
5.6.210.0000.07020.49
5.6.200.0070.05018.16
5.6.190.0030.04320.48
5.6.180.0300.07320.38
5.6.170.0300.06020.45
5.6.160.0070.03720.49
5.6.150.0030.04018.22
5.6.140.0100.07718.18
5.6.130.0170.07018.18
5.6.120.0200.07320.98
5.6.110.0030.04320.98
5.6.100.0130.05320.98
5.6.90.0170.07321.10
5.6.80.0130.07720.28
5.6.70.0300.02320.38
5.5.350.0230.06720.52
5.5.340.0070.06717.96
5.5.330.0000.09020.19
5.5.320.0270.07720.29
5.5.310.0300.07720.34
5.5.300.0100.08017.91
5.5.290.0100.07717.96
5.5.280.0130.07720.75
5.5.270.0070.08320.84
5.5.260.0030.05020.71
5.5.250.0030.08720.68
5.5.240.0100.07720.25
5.4.450.0100.07719.24
5.4.440.0030.04319.47
5.4.430.0100.03319.48
5.4.420.0100.06019.52
5.4.410.0070.03319.34
5.4.400.0030.04019.18
5.4.390.0030.03718.77
5.4.380.0070.03319.18
5.4.370.0030.03719.17
5.4.360.0130.02719.18
5.4.350.0070.03719.07
5.4.340.0030.03719.09
5.4.320.0030.04019.15
5.4.310.0070.03319.17
5.4.300.0200.03319.11
5.4.290.0100.03019.14
5.4.280.0130.02718.91
5.4.270.0030.03719.15
5.4.260.0030.03718.95
5.4.250.0030.03719.17
5.4.240.0030.03718.78
5.4.230.0100.03019.11
5.4.220.0070.03318.91
5.4.210.0070.03319.11
5.4.200.0030.03719.17
5.4.190.0030.03718.77
5.4.180.0070.04319.06
5.4.170.0070.04318.77
5.4.160.0100.05018.76
5.4.150.0070.07019.17
5.4.140.0000.05316.25
5.4.130.0000.05316.26
5.4.120.0030.05016.48
5.4.110.0030.04716.38
5.4.100.0070.04316.29
5.4.90.0030.05716.41
5.4.80.0070.04016.27
5.4.70.0000.07716.30
5.4.60.0000.04316.25
5.4.50.0200.03316.12
5.4.40.0130.06016.21
5.4.30.0070.07016.29
5.4.20.0070.06316.32
5.4.10.0170.06716.21
5.4.00.0070.03715.73
5.3.290.0070.03314.56
5.3.280.0070.03314.55
5.3.270.0030.06314.62
5.3.260.0170.06714.54
5.3.250.0030.07714.61
5.3.240.0070.07314.58
5.3.230.0070.07714.38
5.3.220.0130.03714.50
5.3.210.0100.06014.51
5.3.200.0070.03314.57
5.3.190.0130.04314.50
5.3.180.0070.07314.50
5.3.170.0230.05014.50
5.3.160.0070.03714.53
5.3.150.0030.08014.54
5.3.140.0070.06714.37
5.3.130.0000.06014.46
5.3.120.0070.06714.49
5.3.110.0100.06014.48
5.3.100.0070.06713.99
5.3.90.0030.04313.98
5.3.80.0070.07013.80
5.3.70.0070.08313.95
5.3.60.0200.06013.93
5.3.50.0170.06713.88
5.3.40.0000.05713.88
5.3.30.0030.05713.89
5.3.20.0000.07713.71
5.3.10.0030.05713.62
5.3.00.0130.06713.45
5.2.170.0030.06311.08
5.2.160.0070.05711.14
5.2.150.0100.05311.14
5.2.140.0000.04011.29
5.2.130.0070.03011.09
5.2.120.0030.03011.08
5.2.110.0000.05310.98
5.2.100.0030.05310.92
5.2.90.0030.06311.01
5.2.80.0070.06011.08
5.2.70.0030.07011.07
5.2.60.0070.04710.94
5.2.50.0000.05010.95
5.2.40.0030.04011.14
5.2.30.0030.06010.91
5.2.20.0000.03310.86
5.2.10.0000.06710.91
5.2.00.0070.05010.74
5.1.60.0070.0239.96
5.1.50.0000.03310.07
5.1.40.0070.04710.03
5.1.30.0100.04010.34
5.1.20.0030.05010.35
5.1.10.0070.02310.02
5.1.00.0030.02310.05
5.0.50.0000.0238.60
5.0.40.0030.0408.45
5.0.30.0070.0408.37
5.0.20.0030.0338.35
5.0.10.0000.0478.15
5.0.00.0030.0638.29
4.4.90.0000.0407.90
4.4.80.0000.0207.90
4.4.70.0030.0377.90
4.4.60.0070.0237.90
4.4.50.0070.0307.90
4.4.40.0030.0507.90
4.4.30.0000.0207.90
4.4.20.0030.0337.90
4.4.10.0070.0237.90
4.4.00.0070.0537.90
4.3.110.0000.0277.90
4.3.100.0000.0207.90
4.3.90.0030.0237.90
4.3.80.0030.0537.90
4.3.70.0070.0207.90
4.3.60.0000.0277.90
4.3.50.0070.0307.90
4.3.40.0000.0407.90
4.3.30.0030.0377.90
4.3.20.0070.0237.90
4.3.10.0000.0207.90
4.3.00.0000.0307.90

preferences:
46.67 ms | 401 KiB | 5 Q