3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "hello"; $b = "hi"; $val = "a"; echo ${$val}; // outputs "hello" echo "\n"; $val = "b"; echo ${$val}; // outputs "hi"

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)
8.3.40.0090.00618.67
8.3.30.0070.01018.97
8.3.20.0040.00420.31
8.3.10.0030.00623.36
8.3.00.0040.00420.96
8.2.170.0030.01222.96
8.2.160.0030.01220.46
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00420.35
8.2.110.0090.00022.30
8.2.100.0060.00617.78
8.2.90.0040.00419.09
8.2.80.0070.00017.97
8.2.70.0000.00917.50
8.2.60.0090.00017.92
8.2.50.0080.00018.07
8.2.40.0040.00419.88
8.2.30.0070.00018.11
8.2.20.0050.00217.59
8.2.10.0030.00517.93
8.2.00.0050.00317.73
8.1.270.0000.00823.91
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0100.00022.18
8.1.230.0000.01118.97
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0000.00917.35
8.1.190.0070.00417.25
8.1.180.0000.00819.01
8.1.170.0040.00418.58
8.1.160.0000.00821.92
8.1.150.0050.00218.63
8.1.140.0000.00717.36
8.1.130.0070.00017.74
8.1.120.0040.00417.48
8.1.110.0020.00517.51
8.1.100.0020.00517.48
8.1.90.0040.00417.35
8.1.80.0040.00417.30
8.1.70.0030.00317.43
8.1.60.0050.00317.55
8.1.50.0040.00417.38
8.1.40.0000.00817.35
8.1.30.0040.00417.49
8.1.20.0000.00717.71
8.1.10.0000.00717.51
8.1.00.0030.00517.41
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0030.00318.44
8.0.270.0070.00017.16
8.0.260.0000.00617.27
8.0.250.0070.00016.99
8.0.240.0000.00816.88
8.0.230.0030.00316.95
8.0.220.0110.00016.86
8.0.210.0030.00516.81
8.0.200.0000.00716.91
8.0.190.0030.00316.92
8.0.180.0040.00416.84
8.0.170.0040.00416.81
8.0.160.0030.00316.77
8.0.150.0000.00716.84
8.0.140.0070.00016.73
8.0.130.0000.00613.35
8.0.120.0040.00416.78
8.0.110.0040.00416.80
8.0.100.0040.00416.87
8.0.90.0000.00716.88
8.0.80.0060.01016.93
8.0.70.0050.00216.74
8.0.60.0040.00416.77
8.0.50.0070.00016.67
8.0.30.0120.00917.05
8.0.20.0130.00517.40
8.0.10.0000.00716.82
8.0.00.0120.00916.74
7.4.330.0050.00015.15
7.4.320.0070.00016.57
7.4.300.0060.00316.50
7.4.290.0030.00316.46
7.4.280.0040.00416.57
7.4.270.0030.00316.52
7.4.260.0030.00316.57
7.4.250.0040.00416.48
7.4.240.0020.00516.52
7.4.230.0070.00016.31
7.4.220.0030.01416.45
7.4.210.0100.00616.64
7.4.200.0000.00716.46
7.4.190.0000.00716.71
7.4.160.0090.00616.50
7.4.150.0070.01117.40
7.4.140.0070.01617.86
7.4.130.0100.00816.50
7.4.120.0130.00516.49
7.4.110.0070.01416.38
7.4.100.0090.00916.42
7.4.90.0120.00616.52
7.4.80.0070.01519.39
7.4.70.0030.01216.50
7.4.60.0080.01516.39
7.4.50.0000.00816.44
7.4.40.0110.01116.50
7.4.30.0080.00816.41
7.4.10.0070.01115.66
7.4.00.0050.01015.40
7.3.330.0020.00213.03
7.3.320.0000.00513.05
7.3.310.0000.00716.13
7.3.300.0030.00316.18
7.3.290.0070.00716.16
7.3.280.0050.01216.23
7.3.270.0140.00317.40
7.3.260.0100.01316.27
7.3.250.0090.00816.40
7.3.240.0060.00916.44
7.3.230.0110.00816.49
7.3.210.0120.00916.38
7.3.200.0130.00316.37
7.3.190.0110.00816.21
7.3.180.0130.00316.27
7.3.170.0030.01616.41
7.3.160.0030.01216.25
7.3.130.0130.00615.63
7.3.120.0100.00515.32
7.3.110.0070.00715.29
7.3.100.0080.00615.31
7.3.90.0050.00915.20
7.3.80.0060.01015.25
7.3.70.0040.00615.23
7.3.60.0060.00815.34
7.3.50.0040.00915.20
7.3.40.0030.00715.18
7.3.30.0060.00815.22
7.3.20.0030.00817.15
7.3.10.0090.00316.80
7.3.00.0080.00616.77
7.2.330.0110.00716.41
7.2.320.0090.00916.71
7.2.310.0120.00616.59
7.2.300.0120.00316.69
7.2.290.0110.00616.66
7.2.260.0100.00915.76
7.2.250.0050.01515.78
7.2.240.0080.00415.41
7.2.230.0060.00915.33
7.2.220.0060.00815.49
7.2.210.0040.01015.32
7.2.200.0070.00615.38
7.2.190.0060.00915.32
7.2.180.0030.01015.49
7.2.170.0070.00615.53
7.2.160.0090.00415.45
7.2.150.0060.00817.34
7.2.140.0100.00417.32
7.2.130.0060.00716.86
7.2.120.0050.00917.01
7.2.110.0070.01017.03
7.2.100.0080.00517.08
7.2.90.0060.01017.02
7.2.80.0060.01116.96
7.2.70.0070.01016.99
7.2.60.0050.01016.98
7.2.50.0060.00916.90
7.2.40.0060.00916.97
7.2.30.0110.00917.03
7.2.20.0090.00817.00
7.2.10.0080.00717.07
7.2.00.0060.00817.04
7.1.330.0070.00716.23
7.1.320.0050.00816.06
7.1.310.0080.00616.06
7.1.300.0040.00816.03
7.1.290.0050.00816.17
7.1.280.0050.00716.09
7.1.270.0070.00416.01
7.1.260.0040.01016.19
7.1.250.0040.00815.93
7.1.240.0100.00816.32
7.1.230.0340.00416.10
7.1.220.0140.00916.03
7.1.210.0100.00216.03
7.1.200.0040.00816.03
7.1.190.0060.00816.10
7.1.180.0100.00316.12
7.1.170.0100.00416.25
7.1.160.0090.00616.25
7.1.150.0070.00716.18
7.1.140.0130.00516.16
7.1.130.0060.01016.13
7.1.120.0060.00616.18
7.1.110.0110.00616.34
7.1.100.0150.00716.69
7.1.90.0040.00816.20
7.1.80.0110.00716.18
7.1.70.0070.00616.37
7.1.60.0090.00917.10
7.1.50.0100.01016.47
7.1.40.0090.00716.25
7.1.30.0070.00816.34
7.1.20.0060.00916.20
7.1.10.0040.00916.03
7.1.00.0060.02417.69
7.0.330.0060.00916.13
7.0.320.0080.00516.12
7.0.310.0110.00615.85
7.0.300.0090.00115.93
7.0.290.0060.00915.71
7.0.280.0140.00615.86
7.0.270.0090.00915.85
7.0.260.0080.00315.95
7.0.250.0060.00615.90
7.0.240.0080.00515.86
7.0.230.0100.00315.95
7.0.220.0050.00815.81
7.0.210.0050.00815.84
7.0.200.0150.00616.07
7.0.190.0050.00815.87
7.0.180.0040.00915.68
7.0.170.0060.00815.96
7.0.160.0070.00815.79
7.0.150.0070.00815.89
7.0.140.0040.02717.39
7.0.130.0070.00915.81
7.0.120.0100.00915.90
7.0.110.0060.00615.85
7.0.100.0020.01315.73
7.0.90.0040.00915.96
7.0.80.0090.00615.81
7.0.70.0060.00815.87
7.0.60.0060.01416.87
7.0.50.0050.02716.36
7.0.40.0120.02115.43
7.0.30.0130.01615.49
7.0.20.0170.02115.37
7.0.10.0080.01815.38
7.0.00.0050.02615.36
5.6.400.0030.01015.15
5.6.390.0050.01015.09
5.6.380.0070.00714.75
5.6.370.0070.00514.72
5.6.360.0060.00714.82
5.6.350.0090.00914.74
5.6.340.0090.00514.78
5.6.330.0050.00914.66
5.6.320.0020.01014.88
5.6.310.0050.00814.66
5.6.300.0060.00714.76
5.6.290.0070.00914.85
5.6.280.0060.02316.27
5.6.270.0060.00514.63
5.6.260.0100.00614.81
5.6.250.0050.01014.71
5.6.240.0080.00514.76
5.6.230.0100.00314.66
5.6.220.0120.00414.77
5.6.210.0080.02416.27
5.6.200.0070.02615.53
5.6.190.0060.01816.25
5.6.180.1050.01816.31
5.6.170.0110.01516.01
5.6.160.0060.02416.12
5.6.150.0060.01515.49
5.6.140.0040.02815.51
5.6.130.0070.01415.51
5.6.120.0090.02016.33
5.6.110.0110.02516.27
5.6.100.0070.02916.29
5.6.90.0070.02016.15
5.6.80.0060.02716.01
5.6.70.1180.01416.08
5.6.60.0060.01014.73
5.6.50.0080.00714.58
5.6.40.0060.01014.58
5.6.30.0060.01014.63
5.6.20.0040.00814.65
5.6.10.0080.00614.60
5.6.00.0060.00814.59
5.5.380.0050.00814.23
5.5.370.0070.00714.11
5.5.360.0060.00714.18
5.5.350.0130.02415.76
5.5.340.0060.01315.16
5.5.330.0060.01515.64
5.5.320.0110.01715.84
5.5.310.0080.01815.73
5.5.300.0080.01415.05
5.5.290.0090.01715.14
5.5.280.0080.01415.86
5.5.270.0060.01315.78
5.5.260.0110.02115.72
5.5.250.0050.01615.78
5.5.240.0110.01815.71
5.5.230.0030.01014.15
5.5.220.0100.00314.12
5.5.210.0070.00414.15
5.5.200.0070.00614.06
5.5.190.0020.01014.04
5.5.180.0050.00714.18
5.5.170.0090.00614.54
5.5.160.0080.00514.12
5.5.150.0070.00614.16
5.5.140.0060.00514.07
5.5.130.0060.00614.24
5.5.120.0040.00914.24
5.5.110.0070.00614.11
5.5.100.0080.00414.13
5.5.90.0060.00714.12
5.5.80.0070.00714.18
5.5.70.0060.00814.05
5.5.60.0070.00814.06
5.5.50.0080.00514.13
5.5.40.0060.00614.20
5.5.30.0070.00514.08
5.5.20.0070.00814.00
5.5.10.0080.00614.09
5.5.00.0060.00513.95
5.4.450.0190.01913.93
5.4.440.0240.02013.98
5.4.430.0210.02014.02
5.4.420.0220.01814.05
5.4.410.0090.01913.99
5.4.400.0260.02213.88
5.4.390.0220.02013.98
5.4.380.0080.01813.86
5.4.370.0070.02313.83
5.4.360.0060.01813.78
5.4.350.0070.02013.83
5.4.340.0050.02013.78
5.4.330.0040.00612.18
5.4.320.0060.01212.21
5.4.310.0070.01412.28
5.4.300.0070.01112.30
5.4.290.0070.01412.30
5.4.280.0050.01312.24
5.4.270.0060.01212.29
5.4.260.0070.01212.31
5.4.250.0070.01212.27
5.4.240.0040.01412.30
5.4.230.0030.01412.34
5.4.220.0060.01112.26
5.4.210.0080.01112.29
5.4.200.0070.01112.22
5.4.190.0060.01212.28
5.4.180.0050.01412.26
5.4.170.0050.01212.27
5.4.160.0060.01412.22
5.4.150.0070.01212.22
5.4.140.0050.01212.20
5.4.130.0070.01312.16
5.4.120.0080.01012.18
5.4.110.0080.01112.19
5.4.100.0060.01212.20
5.4.90.0030.01512.20
5.4.80.0050.01312.23
5.4.70.0060.01412.19
5.4.60.0050.01212.18
5.4.50.0070.01112.22
5.4.40.0040.01412.20
5.4.30.0060.01212.20
5.4.20.0050.01212.19
5.4.10.0060.01112.20
5.4.00.0060.01212.05
5.3.290.0070.01212.29
5.3.280.0060.01512.24
5.3.270.0060.01412.27
5.3.260.0070.01212.27
5.3.250.0040.01612.25
5.3.240.0070.01212.22
5.3.230.0040.01612.19
5.3.220.0060.01612.21
5.3.210.0050.01412.18
5.3.200.0050.01412.19
5.3.190.0040.01412.24
5.3.180.0030.01712.23
5.3.170.0060.01412.22
5.3.160.0030.01712.20
5.3.150.0040.01512.24
5.3.140.0040.01412.23
5.3.130.0040.01412.24
5.3.120.0060.01312.25
5.3.110.0070.01312.22
5.3.100.0030.01612.03
5.3.90.0050.01412.08
5.3.80.0040.01412.07
5.3.70.0050.01612.03
5.3.60.0060.01512.08
5.3.50.0040.01412.05
5.3.40.0040.01412.04
5.3.30.0050.01111.99
5.3.20.0050.01311.97
5.3.10.0050.01211.88
5.3.00.0040.01611.92
5.2.170.0060.01610.98
5.2.160.0080.01510.98
5.2.150.0050.02010.98
5.2.140.0060.01810.98
5.2.130.0070.01610.96
5.2.120.0080.02110.96
5.2.110.0050.02010.96
5.2.100.0060.01810.96
5.2.90.0070.01810.96
5.2.80.0040.01910.96
5.2.70.0060.01610.96
5.2.60.0070.01910.94
5.2.50.0020.01810.92
5.2.40.0040.01810.91
5.2.30.0060.02210.90
5.2.20.0030.01810.89
5.2.10.0090.01610.85
5.2.00.0080.02310.78
5.1.60.0050.01410.42
5.1.50.0070.01310.42
5.1.40.0070.01310.41
5.1.30.0020.01810.59
5.1.20.0050.01610.60
5.1.10.0060.01410.46
5.1.00.0070.01510.47
5.0.50.0050.0199.70
5.0.40.0080.0209.63
5.0.30.0090.0299.54
5.0.20.0070.0159.52
5.0.10.0040.0209.51
5.0.00.0040.0299.51
4.4.90.0060.0158.78
4.4.80.0040.0168.77
4.4.70.0050.0148.77
4.4.60.0020.0158.77
4.4.50.0060.0128.78
4.4.40.0070.0218.75
4.4.30.0040.0148.77
4.4.20.0070.0138.82
4.4.10.0060.0218.82
4.4.00.0040.0228.77
4.3.110.0020.0178.73
4.3.100.0040.0148.73
4.3.90.0040.0138.71
4.3.80.0030.0208.69
4.3.70.0050.0118.71
4.3.60.0060.0138.71
4.3.50.0050.0158.71
4.3.40.0050.0198.66
4.3.30.0040.0128.03
4.3.20.0050.0128.02
4.3.10.0020.0158.00
4.3.00.0050.01010.37

preferences:
35.79 ms | 400 KiB | 5 Q