3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3); $b = &$a; foreach($a as $i => $v) { echo "$v\n"; $a[0] = 3; unset($a[1]); } var_dump($a); var_dump($b);

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)
8.3.40.0120.00319.02
8.3.30.0090.00918.84
8.3.20.0040.00420.39
8.3.10.0080.00023.71
8.3.00.0040.00419.38
8.2.170.0120.00322.96
8.2.160.0070.00720.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00317.63
8.2.120.0040.00426.35
8.2.110.0080.00422.24
8.2.100.0090.00318.03
8.2.90.0050.00319.22
8.2.80.0080.00017.97
8.2.70.0040.00417.50
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0000.00719.34
8.2.30.0020.00520.50
8.2.20.0060.00317.74
8.2.10.0040.00418.18
8.2.00.0000.00718.11
8.1.270.0060.00323.87
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0090.00022.57
8.1.230.0040.00817.78
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.25
8.1.190.0030.00617.76
8.1.180.0000.00718.10
8.1.170.0040.00418.66
8.1.160.0030.00321.91
8.1.150.0000.00718.89
8.1.140.0080.00019.58
8.1.130.0000.00717.70
8.1.120.0000.00717.45
8.1.110.0080.00017.35
8.1.100.0050.00317.48
8.1.90.0030.00317.50
8.1.80.0000.00717.35
8.1.70.0030.00317.45
8.1.60.0070.00017.52
8.1.50.0000.00817.57
8.1.40.0110.00017.50
8.1.30.0090.00017.62
8.1.20.0000.00717.62
8.1.10.0040.00417.46
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0030.00318.36
8.0.270.0030.00317.21
8.0.260.0030.00317.13
8.0.250.0000.00716.95
8.0.240.0000.00616.83
8.0.230.0000.00716.89
8.0.220.0040.00416.86
8.0.210.0030.00316.78
8.0.200.0060.00016.84
8.0.190.0080.00016.85
8.0.180.0000.00716.96
8.0.170.0040.00416.84
8.0.160.0000.00716.90
8.0.150.0070.00016.73
8.0.140.0030.00616.71
8.0.130.0060.00013.38
8.0.120.0040.00416.79
8.0.110.0000.00816.94
8.0.100.0000.00716.79
8.0.90.0000.00716.78
8.0.80.0130.00716.89
8.0.70.0050.00316.93
8.0.60.0000.00816.71
8.0.50.0040.00416.85
8.0.30.0130.00717.09
8.0.20.0060.01217.40
8.0.10.0000.00716.98
8.0.00.0070.01116.73
7.4.330.0000.00416.67
7.4.320.0060.00016.55
7.4.300.0030.00316.51
7.4.290.0030.00316.61
7.4.280.0000.00816.51
7.4.270.0060.00016.49
7.4.260.0000.00716.61
7.4.250.0080.00016.44
7.4.240.0040.00416.45
7.4.230.0030.00316.59
7.4.220.0140.00716.48
7.4.210.0070.00716.50
7.4.200.0000.00716.41
7.4.160.0100.00516.43
7.4.150.0090.00917.40
7.4.140.0110.01217.86
7.4.130.0080.00916.52
7.4.120.0090.00916.54
7.4.110.0140.00416.59
7.4.100.0140.00316.32
7.4.90.0090.00616.40
7.4.80.0120.01319.39
7.4.70.0100.01316.40
7.4.60.0120.00316.49
7.4.50.0030.01016.64
7.4.40.0060.00916.43
7.4.30.0090.00816.47
7.4.00.0080.00814.86
7.3.330.0000.00513.08
7.3.320.0060.00013.32
7.3.310.0070.00016.41
7.3.300.0030.00316.13
7.3.290.0070.00716.33
7.3.280.0090.00816.36
7.3.270.0120.00417.40
7.3.260.0070.01116.49
7.3.250.0130.00316.32
7.3.240.0060.01116.49
7.3.230.0070.01016.40
7.3.210.0060.00916.58
7.3.200.0060.01116.39
7.3.190.0120.00616.29
7.3.180.0090.00616.63
7.3.170.0130.00616.58
7.3.160.0120.00616.48
7.3.120.0000.01214.95
7.3.110.0060.00614.39
7.3.100.0040.00714.48
7.3.90.0060.00914.93
7.3.80.0040.00714.79
7.3.70.0030.00914.77
7.3.60.0030.00914.86
7.3.50.0040.01114.96
7.3.40.0070.00714.86
7.3.30.0040.00714.98
7.3.20.0040.00816.90
7.3.10.0070.01016.52
7.3.00.0040.00616.76
7.2.330.0120.00616.59
7.2.320.0120.00816.69
7.2.310.0030.01516.64
7.2.300.0100.00716.66
7.2.290.0140.00316.39
7.2.250.0120.00615.09
7.2.240.0090.00914.50
7.2.230.0030.01415.06
7.2.220.0100.00714.95
7.2.210.0110.00014.88
7.2.200.0060.00914.73
7.2.190.0100.00615.13
7.2.180.0060.00314.79
7.2.170.0130.00314.81
7.2.160.0080.00814.96
7.2.150.0140.00417.00
7.2.140.0090.00616.87
7.2.130.0050.00916.86
7.2.120.0060.00917.00
7.2.110.0070.01016.75
7.2.100.0070.00916.97
7.2.90.0050.00916.90
7.2.80.0030.01016.88
7.2.70.0070.00616.88
7.2.60.0050.00916.96
7.2.50.0020.01216.90
7.2.40.0100.00516.91
7.2.30.0000.01416.79
7.2.20.0050.00816.76
7.2.10.0050.01016.74
7.2.00.0050.00717.70
7.1.330.0100.00315.79
7.1.320.0030.00715.86
7.1.310.0030.00715.77
7.1.300.0040.00415.81
7.1.290.0060.00715.77
7.1.280.0040.00415.96
7.1.270.0000.01716.01
7.1.260.0030.00915.90
7.1.250.0040.00915.95
7.1.240.0000.01816.01
7.1.230.0090.00315.80
7.1.220.0060.00915.77
7.1.210.0070.00715.85
7.1.200.0030.00815.78
7.1.190.0060.00615.80
7.1.180.0100.00315.82
7.1.170.0030.00715.73
7.1.160.0060.00815.62
7.1.150.0090.00015.91
7.1.140.0030.00615.70
7.1.130.0000.01315.76
7.1.120.0030.00615.92
7.1.110.0060.01015.71
7.1.100.0060.00616.85
7.1.90.0060.00615.77
7.1.80.0100.00315.59
7.1.70.0040.00416.57
7.1.60.0100.00917.52
7.1.50.0030.01116.37
7.1.40.0030.01216.04
7.1.30.0000.01215.47
7.1.20.0000.00915.91
7.1.10.0080.00415.86
7.1.00.0030.04019.04
7.0.330.0070.00715.34
7.0.320.0040.00715.39
7.0.310.0000.01615.45
7.0.300.0030.01015.43
7.0.290.0090.00315.41
7.0.280.0070.00715.29
7.0.270.0070.00015.12
7.0.260.0080.00415.41
7.0.250.0030.01015.19
7.0.240.0000.00915.62
7.0.230.0040.00415.43
7.0.220.0030.00615.53
7.0.210.0100.00315.23
7.0.200.0890.00915.06
7.0.190.0070.00715.47
7.0.180.0100.00315.44
7.0.170.0110.00315.16
7.0.160.0070.00715.39
7.0.150.0100.00015.61
7.0.140.0040.01115.18
7.0.130.0100.00415.53
7.0.120.0100.00315.50
7.0.110.0060.00615.22
7.0.100.0050.03517.67
7.0.90.0050.04917.72
7.0.80.0080.04517.69
7.0.70.0130.03717.79
7.0.60.0080.03617.60
7.0.50.0080.02717.88
7.0.40.0030.04716.75
7.0.30.0130.04016.69
7.0.20.0070.02316.85
7.0.10.0090.03516.71
7.0.00.0040.04716.82
5.6.380.0000.01214.37
5.6.370.0100.00314.56
5.6.360.0050.00614.20
5.6.350.0030.01014.21
5.6.340.0040.01214.71
5.6.330.0070.00714.21
5.6.320.0000.01214.35
5.6.310.0030.00914.14
5.6.300.0040.00714.34
5.6.290.0030.00614.43
5.6.280.0020.03717.52
5.6.270.0110.00414.04
5.6.260.0000.01214.24
5.6.250.0060.04117.55
5.6.240.0080.04317.57
5.6.230.0090.03817.40
5.6.220.0030.04017.58
5.6.210.0070.02817.41
5.6.200.0100.02817.51
5.6.190.0030.04817.76
5.6.180.0120.03217.81
5.6.170.0070.03817.71
5.6.160.0080.04017.64
5.6.150.0120.02717.81
5.6.140.0090.03817.67
5.6.130.0030.03917.64
5.6.120.0100.04217.59
5.6.110.0050.03717.65
5.6.100.0070.04517.85
5.6.90.0090.04517.68
5.6.80.0070.04517.28
5.6.70.0080.04517.39
5.6.60.0080.02517.33
5.6.50.0070.02717.27
5.6.40.0030.02817.30
5.6.30.0050.03217.37
5.6.20.0070.03317.33
5.6.10.0070.03917.43
5.6.00.0100.03217.19
5.5.380.0100.03015.74
5.5.370.0070.04015.76
5.5.360.0060.04115.75
5.5.350.0010.04915.82
5.5.340.0070.03715.99
5.5.330.0030.04116.02
5.5.320.0050.04216.10
5.5.310.0100.03615.90
5.5.300.0080.02515.89
5.5.290.0060.04115.93
5.5.280.0030.03115.90
5.5.270.0020.02815.98
5.5.260.0070.04216.02
5.5.250.0030.04215.95
5.5.240.0050.02615.74
5.5.230.0110.04115.73
5.5.220.0110.04015.64
5.5.210.0050.03515.73
5.5.200.0070.03815.71
5.5.190.0080.03015.64
5.5.180.0100.04015.75
5.5.170.0060.00611.26
5.5.160.0070.04215.73
5.5.150.0080.03415.67
5.5.140.0050.03015.66
5.5.130.0020.04815.65
5.5.120.0070.02515.58
5.5.110.0070.03915.69
5.5.100.0020.03215.58
5.5.90.0050.02715.56
5.5.80.0070.04115.65
5.5.70.0100.03515.64
5.5.60.0040.03715.64
5.5.50.0070.02515.57
5.5.40.0060.03415.65
5.5.30.0030.03615.56
5.5.20.0090.03215.66
5.5.10.0040.04315.65
5.5.00.0120.03815.57

preferences:
46.29 ms | 400 KiB | 5 Q