3v4l.org

run code in 300+ PHP versions simultaneously
<?php $rose = "black"; ${"rose"} = "white"; $rose = "red"; print_r(${"rose"}); echo "\n"; $arr{" "} = 99; var_dump($arr); $o = (object) $arr; var_dump($o); echo $o->{" "},"\n";

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)
8.3.60.0110.00418.43
8.3.50.0120.00821.28
8.3.40.0070.01018.59
8.3.30.0070.00718.79
8.3.20.0070.00020.16
8.3.10.0040.00423.66
8.3.00.0080.00019.26
8.2.180.0120.00616.38
8.2.170.0070.00722.96
8.2.160.0070.00720.44
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0060.00326.16
8.2.120.0000.00822.08
8.2.110.0060.00322.25
8.2.100.0040.00717.78
8.2.90.0060.00318.92
8.2.80.0080.00017.97
8.2.70.0060.00317.38
8.2.60.0040.00417.80
8.2.50.0050.00318.07
8.2.40.0080.00019.85
8.2.30.0050.00217.80
8.2.20.0000.00717.55
8.2.10.0060.00317.91
8.2.00.0070.00017.41
8.1.280.0070.01025.92
8.1.270.0060.00322.12
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0090.00023.73
8.1.230.0060.00619.12
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0080.00017.10
8.1.180.0000.00718.10
8.1.170.0000.00818.49
8.1.160.0000.00722.04
8.1.150.0000.00718.79
8.1.140.0040.00417.25
8.1.130.0030.00317.75
8.1.120.0030.00317.34
8.1.110.0000.00717.31
8.1.100.0040.00417.32
8.1.90.0050.00217.34
8.1.80.0030.00317.32
8.1.70.0030.00317.33
8.1.60.0080.00017.43
8.1.50.0040.00417.40
8.1.40.0040.00417.28
8.1.30.0040.00417.43
8.1.20.0090.00017.53
8.1.10.0000.00717.41
8.1.00.0040.00417.29
8.0.300.0070.00018.77
8.0.290.0000.00816.75
8.0.280.0080.00018.21
8.0.270.0050.00317.11
8.0.260.0030.00317.17
8.0.250.0030.00316.89
8.0.240.0040.00416.81
8.0.230.0040.00416.88
8.0.220.0060.00316.78
8.0.210.0000.00716.70
8.0.200.0030.00316.86
8.0.190.0040.00416.89
8.0.180.0030.00316.77
8.0.170.0000.00816.74
8.0.160.0070.00016.71
8.0.150.0070.00016.71
8.0.140.0000.00716.71
8.0.130.0000.00613.18
8.0.120.0080.00016.72
8.0.110.0000.00816.80
8.0.100.0040.00416.64
8.0.90.0000.00716.73
8.0.80.0090.00616.82
8.0.70.0050.00216.65
8.0.60.0040.00416.68
8.0.50.0000.00716.84
8.0.30.0100.00916.85
8.0.20.0120.00717.40
8.0.10.0030.00516.88
8.0.00.0080.01016.67
7.4.330.0040.00015.00
7.4.320.0060.00016.58
7.4.300.0000.00616.41
7.4.290.0030.00316.59
7.4.280.0030.00616.50
7.4.270.0030.00316.55
7.4.260.0030.00316.51
7.4.250.0070.00016.36
7.4.240.0000.00716.58
7.4.230.0040.00416.25
7.4.220.0070.01016.55
7.4.210.0110.00416.62
7.4.200.0070.00016.43
7.4.160.0130.00316.50
7.4.150.0120.00617.40
7.4.140.0090.00917.86
7.4.130.0100.00816.51
7.4.120.0080.00916.46
7.4.110.0070.01616.76
7.4.100.0140.00316.46
7.4.90.0080.01116.58
7.4.80.0130.00719.39
7.4.70.0030.01316.42
7.4.60.0090.00616.66
7.4.50.0000.00916.21
7.4.40.0100.00716.57
7.4.30.0060.01316.73
7.4.00.0070.01014.96
7.3.330.0060.00013.18
7.3.320.0000.00613.03
7.3.310.0020.00516.13
7.3.300.0070.00016.32
7.3.290.0080.00516.29
7.3.280.0100.00716.27
7.3.270.0090.01117.40
7.3.260.0190.00316.38
7.3.250.0060.01216.58
7.3.240.0150.00416.51
7.3.230.0150.01216.50
7.3.210.0110.00616.32
7.3.200.0110.00719.39
7.3.190.0140.00916.57
7.3.180.0030.01316.32
7.3.170.0100.00616.47
7.3.160.0100.00716.45
7.3.120.0100.01014.46
7.3.110.0150.00014.86
7.3.100.0030.01014.72
7.3.90.0000.00814.84
7.3.80.0080.00415.06
7.3.70.0070.00715.01
7.3.60.0040.00814.98
7.3.50.0060.00614.94
7.3.40.0060.00314.75
7.3.30.0120.00314.88
7.3.20.0030.00616.55
7.3.10.0030.01016.37
7.3.00.0050.01016.44
7.2.330.0140.00316.46
7.2.320.0090.00816.67
7.2.310.0110.01116.46
7.2.300.0070.01516.61
7.2.290.0100.01316.31
7.2.250.0120.00615.02
7.2.240.0060.01515.04
7.2.230.0080.00414.94
7.2.220.0000.01314.91
7.2.210.0030.00915.30
7.2.200.0030.01314.95
7.2.190.0060.00614.98
7.2.180.0040.00815.15
7.2.170.0070.01014.95
7.2.130.0110.00716.75
7.2.120.0130.00316.79
7.2.110.0060.00616.77
7.2.100.0070.00716.66
7.2.90.0060.00616.77
7.2.80.0110.00416.85
7.2.70.0070.00717.03
7.2.60.0090.00617.05
7.2.50.0140.00016.74
7.2.40.0100.00716.83
7.2.30.0030.01016.96
7.2.20.0040.00716.66
7.2.10.0100.00316.83
7.2.00.0070.00918.01
7.1.330.0080.00815.68
7.1.320.0000.01015.82
7.1.310.0030.00615.88
7.1.300.0110.00416.00
7.1.290.0000.01715.89
7.1.280.0070.00715.61
7.1.270.0030.00715.60
7.1.260.0080.00315.70
7.1.250.0100.00615.36
7.1.240.0040.01215.39
7.1.230.0070.00715.67
7.1.220.0080.00315.46
7.1.210.0120.00315.82
7.1.200.0140.00515.79
7.1.190.0070.00315.73
7.1.180.0100.00315.80
7.1.170.0070.00715.59
7.1.160.0070.00715.59
7.1.150.0140.00015.61
7.1.140.0090.00615.43
7.1.130.0070.00715.68
7.1.120.0080.00815.83
7.1.110.0030.00915.75
7.1.100.0060.01017.04
7.1.90.0100.00315.91
7.1.80.0040.00715.68
7.1.70.0080.00616.47
7.1.60.0110.00917.35
7.1.50.0100.00716.18
7.1.40.0120.00315.80
7.1.30.0170.00315.68
7.1.20.0090.00915.55
7.1.10.0120.00615.57
7.1.00.0050.04218.98
7.0.330.0110.00015.12
7.0.320.0080.00915.05
7.0.310.0070.01015.46
7.0.300.0090.00615.35
7.0.290.0120.00915.29
7.0.280.0060.01015.23
7.0.270.0090.00615.50
7.0.260.0060.00615.24
7.0.250.0130.00315.38
7.0.240.0060.00615.39
7.0.230.0080.00414.85
7.0.220.0040.00815.38
7.0.210.0100.00715.36
7.0.200.0030.00815.82
7.0.190.0110.00715.29
7.0.180.0060.00915.32
7.0.170.0060.00915.28
7.0.160.0140.00415.26
7.0.150.0120.00015.20
7.0.140.0050.04118.58
7.0.130.0040.00715.25
7.0.120.0060.00614.73
7.0.110.0070.00715.30
7.0.100.0070.00715.38
7.0.90.0030.01015.42
7.0.80.0060.00915.28
7.0.70.0070.00715.18
7.0.60.0060.02317.60
7.0.50.0120.03016.69
7.0.40.0050.02516.62
7.0.30.0260.03516.66
7.0.20.0170.03916.64
7.0.10.0090.02216.86
7.0.00.0070.04416.75
5.6.380.0030.00914.55
5.6.370.0000.01214.16
5.6.360.0060.00314.26
5.6.350.0100.00014.43
5.6.340.0070.00314.34
5.6.330.0030.00714.24
5.6.320.0070.00314.23
5.6.310.0100.00314.13
5.6.300.0050.00514.16
5.6.290.0040.00714.49
5.6.280.0030.00514.34
5.6.270.0050.01014.21
5.6.260.0030.01014.21
5.6.250.0040.00714.28
5.6.240.0060.00614.24
5.6.230.0040.00714.26
5.6.220.0030.00714.23
5.6.210.0080.04517.55
5.6.200.0070.04316.23
5.6.190.0080.02717.29
5.6.180.0260.03217.39
5.6.170.0100.02317.25
5.6.160.0050.02217.25
5.6.150.0060.02616.19
5.6.140.0030.04716.23
5.6.130.0020.04316.18
5.6.120.0070.04817.55
5.6.110.0070.03217.52
5.6.100.0030.04617.58
5.6.90.0080.03617.55
5.6.80.0080.04017.28
5.6.70.0070.00414.00
5.6.60.0030.00814.31
5.6.50.0100.00314.04
5.6.40.0000.01314.14
5.6.30.0090.00014.05
5.6.20.0000.01214.26
5.6.10.0060.00614.04
5.6.00.0060.00314.34
5.5.380.0000.00710.61
5.5.370.0040.00710.76
5.5.360.0000.01110.92
5.5.350.0080.03715.51
5.5.340.0070.04214.49
5.5.330.0060.02315.56
5.5.320.0270.02715.55
5.5.310.0110.02515.57
5.5.300.0070.03714.45
5.5.290.0050.04214.48
5.5.280.0020.02315.87
5.5.270.0090.02915.86
5.5.260.0080.04115.86
5.5.250.0000.02715.79
5.5.240.0160.03715.58
5.5.230.0040.00411.04
5.5.220.0030.00310.82
5.5.210.0060.00310.87
5.5.200.0040.00410.75
5.5.190.0060.00611.04
5.5.180.0030.00910.76
5.5.170.0030.00810.87
5.5.160.0050.00311.08
5.5.150.0030.00611.00
5.5.140.0050.00310.94
5.5.130.0060.00010.83
5.5.120.0030.00610.79
5.5.110.0050.00310.98
5.5.100.0030.00610.99
5.5.90.0050.00310.68
5.5.80.0000.01010.68
5.5.70.0060.00011.16
5.5.60.0000.00811.09
5.5.50.0000.00911.13
5.5.40.0080.00310.96
5.5.30.0000.01210.83
5.5.20.0050.00511.16
5.5.10.0030.00610.70
5.5.00.0030.00611.10
5.4.450.0410.03015.20
5.4.440.0380.03015.38
5.4.430.0140.02715.26
5.4.420.0370.00215.45
5.4.410.0380.00215.23
5.4.400.0350.00315.17
5.4.390.0340.00215.06
5.4.380.0410.00115.11
5.4.370.0350.00115.05
5.4.360.0350.00215.02
5.4.350.0360.00315.06
5.4.340.0070.02011.50
5.4.330.0030.01011.04
5.4.320.0080.01811.77
5.4.310.0040.02311.67
5.4.300.0080.01911.71
5.4.290.0030.02511.70
5.4.280.0070.01811.72
5.4.270.0040.02011.68
5.4.260.0020.02511.69
5.4.250.0080.02111.72
5.4.240.0030.02211.71
5.4.230.0060.02111.72
5.4.220.0030.02211.77
5.4.210.0050.02111.67
5.4.200.0040.02311.72
5.4.190.0040.01911.72
5.4.180.0050.01911.67
5.4.170.0060.01911.59
5.4.160.0050.02011.64
5.4.150.0030.02311.68
5.4.140.0050.02111.57
5.4.130.0050.02011.54
5.4.120.0050.02211.41
5.4.110.0070.01811.50
5.4.100.0100.01611.49
5.4.90.0090.02211.53
5.4.80.0100.02011.40
5.4.70.0060.02511.42
5.4.60.0080.02111.56
5.4.50.0080.02011.49
5.4.40.0040.02311.60
5.4.30.0070.02011.57
5.4.20.0060.02011.53
5.4.10.0070.02111.53
5.4.00.0080.01811.28
5.3.290.0070.02211.66
5.3.280.0060.02111.61
5.3.270.0050.02311.62
5.3.260.0050.02311.62
5.3.250.0060.02211.62
5.3.240.0050.02011.62
5.3.230.0040.02311.61
5.3.220.0070.02011.60
5.3.210.0070.02111.60
5.3.200.0060.02211.60
5.3.190.0090.01911.59
5.3.180.0120.01711.64
5.3.170.0080.01911.59
5.3.160.0050.02211.59
5.3.150.0090.02111.61
5.3.140.0060.02211.59
5.3.130.0050.02511.64
5.3.120.0080.02111.58
5.3.110.0050.02411.64
5.3.100.0070.02111.32
5.3.90.0070.02211.30
5.3.80.0060.02011.29
5.3.70.0030.02211.29
5.3.60.0060.01911.29
5.3.50.0040.02311.26
5.3.40.0040.02011.26
5.3.30.0040.02111.23
5.3.20.0060.02611.12
5.3.10.0040.02111.10
5.3.00.0020.02211.10
5.2.170.0020.0189.84
5.2.160.0060.0179.84
5.2.150.0040.0199.84
5.2.140.0040.0189.84
5.2.130.0050.0159.82
5.2.120.0040.0169.82
5.2.110.0020.0179.83
5.2.100.0040.0159.82
5.2.90.0040.0179.82
5.2.80.0040.0199.82
5.2.70.0040.0189.82
5.2.60.0050.0169.80
5.2.50.0040.0179.78
5.2.40.0060.0169.77
5.2.30.0050.0189.76
5.2.20.0030.0189.76
5.2.10.0030.0179.72
5.2.00.0020.0209.65
5.1.60.0040.0139.29
5.1.50.0050.0239.29
5.1.40.0060.0189.28
5.1.30.0050.0159.46
5.1.20.0050.0149.47
5.1.10.0030.0159.33
5.1.00.0050.0129.33
5.0.50.0050.0108.57
5.0.40.0020.0128.50
5.0.30.0050.0168.41
5.0.20.0040.0098.39
5.0.10.0030.0128.38
5.0.00.0020.0178.38
4.4.90.0020.0107.65
4.4.80.0010.0117.63
4.4.70.0020.0127.63
4.4.60.0020.0087.63
4.4.50.0020.0117.64
4.4.40.0050.0127.61
4.4.30.0010.0107.64
4.4.20.0020.0117.68
4.4.10.0030.0107.68
4.4.00.0010.0167.64
4.3.110.0020.0107.59
4.3.100.0050.0077.59
4.3.90.0020.0087.57
4.3.80.0020.0237.54
4.3.70.0020.0147.57
4.3.60.0040.0077.57
4.3.50.0040.0077.57
4.3.40.0020.0147.53
4.3.30.0010.0116.90
4.3.20.0050.0076.89
4.3.10.0010.0106.87
4.3.00.0030.0128.96

preferences:
40.77 ms | 401 KiB | 5 Q