3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(100=>'a',200=>'b',300=>'c',400=>'d'); array_unshift($a,'z'); print_R($a); // What you have to do $a = array(100=>'a',200=>'b',300=>'c',400=>'d'); $a = array('z') + $a; print_R($a);

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)
8.3.60.0090.00918.56
8.3.50.0110.00721.92
8.3.40.0070.00718.57
8.3.30.0100.00318.83
8.3.20.0070.00020.01
8.3.10.0080.00023.61
8.3.00.0040.00420.93
8.2.180.0090.00916.50
8.2.170.0070.01022.96
8.2.160.0070.01020.24
8.2.150.0030.00524.18
8.2.140.0150.00024.66
8.2.130.0000.00726.16
8.2.120.0040.00420.35
8.2.110.0030.00722.26
8.2.100.0000.01117.72
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0000.00717.80
8.2.50.0060.00318.07
8.2.40.0030.00518.22
8.2.30.0070.00017.89
8.2.20.0080.00017.57
8.2.10.0000.00817.70
8.2.00.0040.00417.73
8.1.280.0120.00625.92
8.1.270.0080.00023.87
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0040.00423.84
8.1.230.0040.00719.15
8.1.220.0090.00017.74
8.1.210.0040.00418.77
8.1.200.0000.01017.23
8.1.190.0040.00417.39
8.1.180.0000.00818.10
8.1.170.0090.00018.46
8.1.160.0040.00421.85
8.1.150.0000.00718.46
8.1.140.0030.00617.29
8.1.130.0000.00717.72
8.1.120.0030.00317.38
8.1.110.0050.00317.26
8.1.100.0000.00817.37
8.1.90.0000.00817.37
8.1.80.0070.00017.37
8.1.70.0030.00317.25
8.1.60.0040.00417.54
8.1.50.0060.00317.32
8.1.40.0040.00417.38
8.1.30.0060.00317.43
8.1.20.0050.00217.62
8.1.10.0080.00017.48
8.1.00.0030.00717.39
8.0.300.0000.00818.77
8.0.290.0040.00417.16
8.0.280.0000.00818.37
8.0.270.0040.00417.18
8.0.260.0030.00316.68
8.0.250.0030.00316.92
8.0.240.0070.00016.97
8.0.230.0000.00816.94
8.0.220.0000.00716.79
8.0.210.0000.00716.90
8.0.200.0030.00316.89
8.0.190.0040.00416.93
8.0.180.0000.00716.95
8.0.170.0000.00716.96
8.0.160.0050.00216.91
8.0.150.0020.00516.86
8.0.140.0000.00716.86
8.0.130.0000.00613.34
8.0.120.0040.00416.76
8.0.110.0020.00516.96
8.0.100.0030.00316.68
8.0.90.0040.00416.83
8.0.80.0100.01016.86
8.0.70.0030.00616.91
8.0.60.0050.00316.76
8.0.50.0000.00816.85
8.0.30.0170.00417.04
8.0.20.0120.00717.40
8.0.10.0040.00417.02
8.0.00.0070.01216.63
7.4.330.0000.00515.00
7.4.320.0030.00316.50
7.4.300.0060.00016.34
7.4.290.0030.00316.56
7.4.280.0030.00316.46
7.4.270.0000.00716.53
7.4.260.0070.00016.53
7.4.250.0050.00516.28
7.4.240.0030.00316.47
7.4.230.0030.00316.54
7.4.220.0150.00616.36
7.4.210.0110.00316.49
7.4.200.0030.00316.59
7.4.190.0000.00716.65
7.4.160.0060.01016.30
7.4.150.0030.01317.40
7.4.140.0050.01317.86
7.4.130.0140.00416.38
7.4.120.0090.00716.39
7.4.110.0100.00616.31
7.4.100.0090.00916.43
7.4.90.0060.01016.53
7.4.80.0060.01019.39
7.4.70.0100.00716.32
7.4.60.0080.01016.30
7.4.50.0020.00216.24
7.4.40.0030.00922.77
7.4.30.0120.01216.20
7.4.00.0000.01614.69
7.3.330.0000.00512.94
7.3.320.0000.00513.17
7.3.310.0030.00316.29
7.3.300.0030.00316.19
7.3.290.0070.01016.24
7.3.280.0090.00716.17
7.3.270.0110.00617.40
7.3.260.0190.00016.15
7.3.250.0080.00916.22
7.3.240.0100.01316.27
7.3.230.0170.00016.39
7.3.210.0030.01316.20
7.3.200.0060.01119.39
7.3.190.0120.00616.20
7.3.180.0130.00316.48
7.3.170.0060.00916.27
7.3.160.0090.00616.22
7.3.120.0030.01414.46
7.2.330.0070.01116.57
7.2.320.0200.00016.49
7.2.310.0140.00316.55
7.2.300.0070.01016.54
7.2.290.0120.00416.40
7.1.70.0040.01117.18
7.1.60.0130.01019.29
7.1.50.0060.01616.73
7.1.00.0000.08022.48
7.0.200.0000.00716.86
7.0.140.0070.06721.92
7.0.100.0270.06719.98
7.0.90.0070.05719.99
7.0.80.0130.08019.95
7.0.70.0070.05719.93
7.0.60.0200.03319.85
7.0.50.0130.08720.38
7.0.40.0030.08720.13
7.0.30.0030.08320.05
7.0.20.0070.08319.95
7.0.10.0030.08720.07
7.0.00.0130.08020.14
5.6.280.0030.07320.90
5.6.250.0100.08020.57
5.6.240.0070.08020.63
5.6.230.0200.07020.54
5.6.220.0100.07720.61
5.6.210.0100.08020.45
5.6.200.0070.08321.04
5.6.190.0170.07321.07
5.6.180.0070.08021.02
5.6.170.0130.07320.96
5.6.160.0100.08721.08
5.6.150.0170.07021.00
5.6.140.0070.06020.95
5.6.130.0130.08721.02
5.6.120.0130.08021.04
5.6.110.0130.07720.92
5.6.100.0130.07721.03
5.6.90.0130.08021.06
5.6.80.0070.07320.40
5.6.70.0100.09020.44
5.6.60.0130.07020.40
5.6.50.0170.07320.32
5.6.40.0130.08020.40
5.6.30.0070.08320.53
5.6.20.0070.08320.40
5.6.10.0200.07020.52
5.6.00.0100.08020.42
5.5.380.0100.07320.39
5.5.370.0170.07320.35
5.5.360.0030.08720.41
5.5.350.0100.08320.41
5.5.340.0170.06720.78
5.5.330.0130.07320.89
5.5.320.0170.07720.86
5.5.310.0100.05320.89
5.5.300.0100.07720.82
5.5.290.0130.04320.86
5.5.280.0130.08320.86
5.5.270.0170.05320.90
5.5.260.0070.07320.90
5.5.250.0100.04720.66
5.5.240.0130.06720.30
5.5.230.0070.08020.26
5.5.220.0130.07720.11
5.5.210.0230.07020.27
5.5.200.0100.05319.99
5.5.190.0130.08020.12
5.5.180.0230.06720.23
5.5.160.0030.07320.21
5.5.150.0070.07020.22
5.5.140.0300.05720.18
5.5.130.0170.06720.27
5.5.120.0070.07720.10
5.5.110.0070.07320.07
5.5.100.0070.08320.07
5.5.90.0070.07720.10
5.5.80.0130.05020.10
5.5.70.0030.08020.08
5.5.60.0070.06720.07
5.5.50.0100.08020.03
5.5.40.0130.07320.11
5.5.30.0100.07020.05
5.5.20.0130.07019.95
5.5.10.0170.04020.10
5.5.00.0130.08020.03
5.4.450.0030.08319.36
5.4.440.0030.06719.38
5.4.430.0100.07719.21
5.4.420.0100.08019.36
5.4.410.0100.06019.33
5.4.400.0230.06718.95
5.4.390.0130.07019.23
5.4.380.0130.07018.89
5.4.370.0100.07019.05
5.4.360.0130.08019.23
5.4.350.0030.07718.85
5.4.340.0130.05719.18
5.4.320.0170.06718.85
5.4.310.0070.06319.13
5.4.300.0070.08019.03
5.4.290.0100.07719.09
5.4.280.0070.08719.04
5.4.270.0100.07018.87
5.4.260.0170.07019.06
5.4.250.0030.08319.04
5.4.240.0130.05319.06
5.4.230.0070.07019.04
5.4.220.0030.06718.87
5.4.210.0100.07318.98
5.4.200.0130.06719.02
5.4.190.0100.07719.11
5.4.180.0070.07319.13
5.4.170.0100.07319.02
5.4.160.0070.07019.02
5.4.150.0070.07018.98
5.4.140.0100.07316.21
5.4.130.0030.07716.43
5.4.120.0000.07716.49
5.4.110.0070.06716.39
5.4.100.0100.05316.34
5.4.90.0100.07016.33
5.4.80.0000.07716.50
5.4.70.0070.06716.38
5.4.60.0130.06316.37
5.4.50.0100.07016.31
5.4.40.0130.07316.39
5.4.30.0100.06716.36
5.4.20.0000.07716.44
5.4.10.0100.06316.46
5.4.00.0070.07315.86
5.3.290.0100.07314.67
5.3.280.0030.05014.56
5.3.270.0070.06014.52
5.3.260.0000.05714.57
5.3.250.0030.06314.57
5.3.240.0070.07014.66
5.3.230.0070.06314.60
5.3.220.0000.04714.59
5.3.210.0070.04714.51
5.3.200.0070.07714.59
5.3.190.0130.05714.63
5.3.180.0270.05714.59
5.3.170.0170.06014.61
5.3.160.0100.05314.58
5.3.150.0030.05014.61
5.3.140.0000.07714.54
5.3.130.0030.08014.68
5.3.120.0100.07314.47
5.3.110.0100.07014.53
5.3.100.0030.08013.96
5.3.90.0100.06014.08
5.3.80.0070.07014.13
5.3.70.0100.07014.08
5.3.60.0130.06714.06
5.3.50.0100.04014.05
5.3.40.0030.06013.86
5.3.30.0130.06713.92
5.3.20.0100.07313.72
5.3.10.0070.06313.63
5.3.00.0100.06313.68
5.2.170.0130.05011.17
5.2.160.0070.06311.05
5.2.150.0030.06011.04
5.2.140.0030.06711.17
5.2.130.0000.03711.01
5.2.120.0000.06311.11
5.2.110.0070.04011.08
5.2.100.0070.05711.14
5.2.90.0070.05711.03
5.2.80.0070.06011.00
5.2.70.0100.05710.98
5.2.60.0100.05711.18
5.2.50.0030.06011.12
5.2.40.0070.05711.08
5.2.30.0170.04310.86
5.2.20.0000.06710.96
5.2.10.0030.05710.77
5.2.00.0030.06310.77
5.1.60.0030.04010.04
5.1.50.0070.0539.99
5.1.40.0070.0479.98
5.1.30.0030.05310.39
5.1.20.0000.05710.42
5.1.10.0130.05010.07
5.1.00.0070.05310.10
5.0.50.0070.0408.55
5.0.40.0000.0478.41
5.0.30.0030.0608.23
5.0.20.0070.0408.27
5.0.10.0000.0308.24
5.0.00.0030.0338.21
4.4.90.0000.0378.05
4.4.80.0030.0308.05
4.4.70.0000.0408.05
4.4.60.0030.0378.05
4.4.50.0000.0408.05
4.4.40.0030.0538.05
4.4.30.0000.0378.05
4.4.20.0030.0338.05
4.4.10.0000.0378.05
4.4.00.0000.0538.05
4.3.110.0070.0308.05
4.3.100.0000.0238.05
4.3.90.0030.0308.05
4.3.80.0070.0208.05
4.3.70.0030.0138.05
4.3.60.0030.0138.05
4.3.50.0070.0178.05
4.3.40.0030.0208.05
4.3.30.0000.0178.05
4.3.20.0000.0178.05
4.3.10.0000.0178.05
4.3.00.0000.0138.05

preferences:
48.23 ms | 401 KiB | 5 Q