3v4l.org

run code in 300+ PHP versions simultaneously
<?php //$arr = array(1 => 'b', 0 => 'a'); $arr = array(1 => 'b'); $arr[0] = 'a'; foreach ($arr as $k => $v) { echo $k . ' ' . $v . PHP_EOL; }

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)
8.3.60.0140.00016.38
8.3.50.0040.01118.13
8.3.40.0100.01018.92
8.3.30.0090.00919.23
8.3.20.0000.00820.21
8.3.10.0080.00021.66
8.3.00.0040.00419.26
8.2.180.0090.00618.41
8.2.170.0110.00422.96
8.2.160.0030.01020.49
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0000.00826.16
8.2.120.0040.00419.36
8.2.110.0070.00319.40
8.2.100.0090.00317.75
8.2.90.0080.00019.30
8.2.80.0040.00417.97
8.2.70.0040.00417.38
8.2.60.0070.00017.93
8.2.50.0030.00618.07
8.2.40.0030.00620.01
8.2.30.0050.00218.23
8.2.20.0040.00417.79
8.2.10.0040.00418.04
8.2.00.0070.00017.61
8.1.280.0140.00725.92
8.1.270.0050.00318.77
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.97
8.1.230.0090.00317.77
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.23
8.1.180.0070.00018.10
8.1.170.0000.00718.88
8.1.160.0040.00421.88
8.1.150.0040.00418.88
8.1.140.0080.00017.43
8.1.130.0050.00317.81
8.1.120.0020.00717.48
8.1.110.0080.00017.43
8.1.100.0040.00417.34
8.1.90.0040.00417.41
8.1.80.0030.00517.36
8.1.70.0000.00817.44
8.1.60.0090.00017.63
8.1.50.0030.00617.39
8.1.40.0000.00717.39
8.1.30.0060.00317.60
8.1.20.0000.00817.67
8.1.10.0040.00417.61
8.1.00.0000.00717.49
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0080.00018.34
8.0.270.0030.00317.13
8.0.260.0080.00017.18
8.0.250.0030.00316.85
8.0.240.0060.00316.91
8.0.230.0000.00716.94
8.0.220.0000.00716.95
8.0.210.0080.00016.79
8.0.200.0000.00816.91
8.0.190.0030.00616.96
8.0.180.0040.00416.80
8.0.170.0000.00816.96
8.0.160.0040.00416.98
8.0.150.0000.00716.72
8.0.140.0000.00716.73
8.0.130.0060.00013.35
8.0.120.0040.00416.82
8.0.110.0040.00416.86
8.0.100.0040.00416.75
8.0.90.0000.00716.89
8.0.80.0060.01016.87
8.0.70.0000.00716.89
8.0.60.0000.00816.90
8.0.50.0040.00416.66
8.0.30.0130.00717.19
8.0.20.0070.01417.43
8.0.10.0040.00417.03
8.0.00.0130.00716.72
7.4.330.0000.00615.16
7.4.320.0000.00616.36
7.4.300.0030.00316.63
7.4.290.0080.00316.49
7.4.280.0000.00816.49
7.4.270.0060.00016.45
7.4.260.0030.00316.58
7.4.250.0030.00516.40
7.4.240.0010.00616.60
7.4.230.0000.00716.34
7.4.220.0120.00916.39
7.4.210.0020.01216.44
7.4.200.0040.00416.49
7.4.160.0120.00316.53
7.4.150.0090.00917.40
7.4.140.0090.00917.86
7.4.130.0110.00616.45
7.4.120.0080.01016.46
7.4.110.0070.01116.48
7.4.100.0070.01016.30
7.4.90.0120.00616.48
7.4.80.0100.01419.39
7.4.70.0080.00816.50
7.4.60.0080.00816.51
7.4.50.0000.00816.54
7.4.40.0120.00316.53
7.4.30.0090.00916.44
7.4.00.0040.01014.94
7.3.330.0000.00613.19
7.3.320.0150.00013.23
7.3.310.0000.00716.33
7.3.300.0030.00316.30
7.3.290.0000.00816.36
7.3.280.0090.01016.33
7.3.270.0120.00617.40
7.3.260.0090.00916.43
7.3.250.0130.00716.43
7.3.240.0140.00316.66
7.3.230.0040.01416.39
7.3.210.0060.01016.54
7.3.200.0030.01319.39
7.3.190.0090.01216.21
7.3.180.0150.00016.63
7.3.170.0090.00916.41
7.3.160.0210.00016.62
7.3.10.0000.00816.61
7.3.00.0000.01516.55
7.2.330.0070.01116.64
7.2.320.0080.00816.42
7.2.310.0090.01516.71
7.2.300.0070.01116.56
7.2.290.0130.00316.69
7.2.130.0150.00316.65
7.2.120.0060.00616.92
7.2.110.0080.00816.66
7.2.100.0040.01216.87
7.2.90.0080.00417.14
7.2.80.0000.01116.66
7.2.70.0030.01016.93
7.2.60.0090.00916.71
7.2.50.0040.00816.81
7.2.40.0100.00016.84
7.2.30.0040.00716.79
7.2.20.0040.00816.91
7.2.10.0000.01117.00
7.2.00.0060.00718.05
7.1.250.0080.00315.72
7.1.100.0090.00318.24
7.1.70.0030.00617.23
7.1.60.0070.01719.50
7.1.50.0170.01734.79
7.1.00.0030.07722.40
7.0.200.0210.00616.43
7.0.140.0030.07722.15
7.0.60.0070.07720.09
7.0.50.0130.08017.81
7.0.40.0100.08320.12
7.0.30.0200.04020.20
7.0.20.0400.07020.20
7.0.10.0370.07320.00
7.0.00.0100.08320.00
5.6.280.0100.06721.12
5.6.210.0070.08020.43
5.6.200.0070.08018.22
5.6.190.0070.09020.55
5.6.180.0370.07020.53
5.6.170.0230.07720.53
5.6.160.0030.04720.40
5.6.150.0170.07318.18
5.6.140.0130.07018.15
5.6.130.0030.09018.17
5.6.120.0070.03720.89
5.6.110.0100.08021.04
5.6.100.0030.08721.02
5.6.90.0100.06720.96
5.6.80.0070.04320.50
5.6.70.0230.07320.46
5.5.350.0200.08020.34
5.5.340.0100.05017.89
5.5.330.0100.04020.43
5.5.320.0100.07720.57
5.5.310.0330.06720.16
5.5.300.0070.04018.02
5.5.290.0100.07717.95
5.5.280.0100.08020.87
5.5.270.0170.07320.74
5.5.260.0170.07720.79
5.5.250.0130.08020.46
5.5.240.0070.08320.15
5.4.450.0770.05319.61
5.4.440.0270.04719.52
5.4.430.0200.05019.51
5.4.420.0200.05019.49
5.4.410.0270.04319.48
5.4.400.0200.05318.77
5.4.390.0270.05018.53
5.4.380.0270.05318.53
5.4.370.0230.05318.46
5.4.360.0270.05018.64
5.4.350.0300.05018.57
5.4.340.0270.05318.62
5.4.320.0270.05018.46
5.4.310.0270.07718.49
5.4.300.0370.05018.68
5.4.290.0370.04318.69
5.4.280.0200.05718.49
5.4.270.0200.05718.77
5.4.260.0270.05018.55
5.4.250.0130.07018.49
5.4.240.0300.06318.65
5.4.230.0170.06018.48
5.4.220.0270.05018.76
5.4.210.0330.04718.45
5.4.200.0230.04716.53
5.4.190.0130.06318.61
5.4.180.0230.05018.48
5.4.170.0330.05018.71
5.4.160.0330.05718.71
5.4.150.0270.06018.75
5.4.140.0270.06316.20
5.4.130.0370.05716.07
5.4.120.0230.06716.16
5.4.110.0130.06316.25
5.4.100.0330.04016.08
5.4.90.0200.06016.24
5.4.80.0330.05016.14
5.4.70.0170.05716.10
5.4.60.0270.04716.09
5.4.50.0170.05016.03
5.4.40.0230.05016.16
5.4.30.0270.05016.02
5.4.20.0270.06716.16
5.4.10.0200.04716.26
5.4.00.0130.05715.70
5.3.290.0200.06014.76
5.3.280.0200.05014.63
5.3.270.0270.06014.70
5.3.260.0230.05314.60
5.3.250.0200.06314.58
5.3.240.0230.05014.49
5.3.230.0270.05314.58
5.3.220.0200.05314.49
5.3.210.0170.05714.44
5.3.200.0100.05714.46
5.3.190.0270.04314.52
5.3.180.0130.05714.63
5.3.170.0200.05014.45
5.3.160.0300.06314.63
5.3.150.0400.05714.65
5.3.140.0330.03714.53
5.3.130.0330.06314.52
5.3.120.0200.05714.52
5.3.110.0300.06714.51
5.3.100.0100.06013.93
5.3.90.0230.05713.98
5.3.80.0400.06013.99
5.3.70.0130.05714.01
5.3.60.0270.04713.98
5.3.50.0270.04713.88
5.3.40.0200.05713.85
5.3.30.0270.05713.84
5.3.20.0330.06013.62
5.3.10.0370.06013.62
5.3.00.0170.05713.55
5.2.170.0170.05011.17
5.2.160.0230.03711.30
5.2.150.0130.04711.14
5.2.140.0300.03011.11
5.2.130.0270.03311.07
5.2.120.0270.05311.15
5.2.110.0200.04011.13
5.2.100.0170.04011.14
5.2.90.0130.04711.12
5.2.80.0270.05011.02
5.2.70.0130.04711.15
5.2.60.0200.04311.11
5.2.50.0230.04711.05
5.2.40.0130.05311.05
5.2.30.0170.04711.01
5.2.20.0130.04010.91
5.2.10.0130.04010.89
5.2.00.0100.05310.81
5.1.60.0100.04010.02
5.1.50.0200.03710.00
5.1.40.0100.04010.04
5.1.30.0200.03310.36
5.1.20.0100.04010.53
5.1.10.0070.05710.10
5.1.00.0130.03710.18
5.0.50.0100.0378.63
5.0.40.0100.0278.44
5.0.30.0070.0578.24
5.0.20.0170.0338.32
5.0.10.0100.0378.28
5.0.00.0070.0608.27
4.4.90.0100.0305.91
4.4.80.0030.0275.88
4.4.70.0070.0275.89
4.4.60.0070.0235.82
4.4.50.0070.0235.90
4.4.40.0070.0335.84
4.4.30.0070.0235.98
4.4.20.0070.0235.98
4.4.10.0070.0235.98
4.4.00.0100.0405.88
4.3.110.0000.0275.85
4.3.100.0070.0275.75
4.3.90.0030.0235.76
4.3.80.0070.0375.86
4.3.70.0030.0235.79
4.3.60.0070.0275.82
4.3.50.0070.0275.86
4.3.40.0100.0305.84
4.3.30.0070.0204.94
4.3.20.0030.0234.94
4.3.10.0100.0204.94
4.3.00.0130.0207.09

preferences:
51.9 ms | 400 KiB | 5 Q