3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = 'hi'; $url =& $test; echo $url."\n"; echo $test."\n"; $url = 'bob'; echo $url."\n"; echo $test."\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)
8.3.40.0120.00918.54
8.3.30.0040.01118.93
8.3.20.0040.00420.21
8.3.10.0050.00323.66
8.3.00.0090.00019.25
8.2.170.0160.00022.96
8.2.160.0070.00720.38
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0050.00322.21
8.2.110.0040.00422.13
8.2.100.0110.00017.78
8.2.90.0070.00019.22
8.2.80.0060.00317.97
8.2.70.0030.00517.50
8.2.60.0040.00417.93
8.2.50.0030.00518.07
8.2.40.0050.00319.81
8.2.30.0070.00017.93
8.2.20.0040.00417.74
8.2.10.0000.00718.11
8.2.00.0000.00717.57
8.1.270.0080.00023.97
8.1.260.0030.00626.35
8.1.250.0070.00028.09
8.1.240.0060.00323.91
8.1.230.0090.00319.03
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.13
8.1.190.0070.00317.30
8.1.180.0070.00318.10
8.1.170.0040.00418.54
8.1.160.0050.00321.85
8.1.150.0040.00418.57
8.1.140.0000.00717.38
8.1.130.0000.00817.82
8.1.120.0040.00417.46
8.1.110.0040.00417.43
8.1.100.0030.00317.44
8.1.90.0000.00717.29
8.1.80.0070.00017.41
8.1.70.0000.00717.37
8.1.60.0050.00317.45
8.1.50.0050.00317.34
8.1.40.0000.00817.41
8.1.30.0040.00417.55
8.1.20.0000.00817.57
8.1.10.0050.00317.47
8.1.00.0000.00717.40
8.0.300.0070.00020.52
8.0.290.0040.00417.04
8.0.280.0060.00318.42
8.0.270.0000.00817.12
8.0.260.0000.00817.24
8.0.250.0030.00316.94
8.0.240.0000.00716.92
8.0.230.0030.00316.86
8.0.220.0000.00616.78
8.0.210.0000.00716.84
8.0.200.0080.00016.86
8.0.190.0040.00416.82
8.0.180.0050.00316.87
8.0.170.0080.00016.91
8.0.160.0000.00716.98
8.0.150.0070.00016.89
8.0.140.0000.00816.88
8.0.130.0050.00013.27
8.0.120.0030.00516.82
8.0.110.0070.00016.91
8.0.100.0000.00716.84
8.0.90.0020.00516.75
8.0.80.0040.01216.92
8.0.70.0000.00716.87
8.0.60.0000.00816.68
8.0.50.0040.00316.74
8.0.30.0100.01217.09
8.0.20.0110.00717.40
8.0.10.0040.00417.00
8.0.00.0140.00616.70
7.4.330.0020.00215.02
7.4.320.0030.00316.51
7.4.300.0000.00716.52
7.4.290.0000.00816.54
7.4.280.0000.00816.47
7.4.270.0000.00716.38
7.4.260.0070.00016.55
7.4.250.0060.00316.50
7.4.240.0040.00416.53
7.4.230.0000.00716.43
7.4.220.0100.01016.40
7.4.210.0120.00416.53
7.4.200.0070.00016.32
7.4.190.0000.00716.60
7.4.160.0150.00316.30
7.4.150.0100.01017.40
7.4.140.0100.00917.86
7.4.130.0130.00516.54
7.4.120.0090.00916.46
7.4.110.0120.00616.30
7.4.100.0090.00916.51
7.4.90.0100.00616.43
7.4.80.0080.01119.39
7.4.70.0100.00616.53
7.4.60.0180.00016.47
7.4.50.0000.00416.47
7.4.40.0100.00716.56
7.4.30.0160.00016.57
7.4.10.0090.00514.82
7.4.00.0080.00914.95
7.3.330.0030.00312.93
7.3.320.0050.00013.11
7.3.310.0000.00716.26
7.3.300.0070.00016.17
7.3.290.0070.00716.18
7.3.280.0040.01416.20
7.3.270.0150.00817.40
7.3.260.0070.01016.42
7.3.250.0060.01116.42
7.3.240.0170.00016.31
7.3.230.0090.00916.39
7.3.210.0140.00316.39
7.3.200.0150.00619.39
7.3.190.0180.00716.23
7.3.180.0040.01116.23
7.3.170.0060.00916.27
7.3.160.0070.01416.36
7.3.130.0070.00914.85
7.3.120.0050.01014.77
7.3.110.0070.00914.64
7.3.100.0080.00814.59
7.3.90.0050.01214.84
7.3.80.0020.01214.67
7.3.70.0120.00414.80
7.3.60.0050.01114.66
7.3.50.0030.01114.61
7.3.40.0070.00614.78
7.3.30.0050.00714.75
7.3.20.0050.01116.44
7.3.10.0050.01016.62
7.3.00.0040.01016.62
7.2.330.0150.00616.56
7.2.320.0110.00816.62
7.2.310.0070.01016.68
7.2.300.0030.01416.77
7.2.290.0120.01316.59
7.2.260.0090.00914.95
7.2.250.0030.01514.90
7.2.240.0040.01314.80
7.2.230.0090.00715.02
7.2.220.0050.01014.96
7.2.210.0030.01015.11
7.2.200.0050.00814.86
7.2.190.0050.01015.01
7.2.180.0060.01014.90
7.2.170.0030.00914.97
7.2.160.0060.01014.82
7.2.150.0100.00416.94
7.2.140.0050.01216.80
7.2.130.0110.00616.83
7.2.120.0050.01016.87
7.2.110.0080.00816.76
7.2.100.0060.00716.85
7.2.90.0040.00916.91
7.2.80.0050.00716.78
7.2.70.0070.00816.88
7.2.60.0080.00416.80
7.2.50.0050.01016.75
7.2.40.0080.00716.79
7.2.30.0080.00816.92
7.2.20.0070.00916.81
7.2.10.0060.01016.67
7.2.00.0040.00817.23
7.1.330.0080.00715.70
7.1.320.0120.00415.65
7.1.310.0060.00615.73
7.1.300.0050.00815.68
7.1.290.0050.00915.49
7.1.280.0020.01015.65
7.1.270.0030.01115.47
7.1.260.0000.01215.50
7.1.250.0050.00615.64
7.1.240.0100.00515.63
7.1.230.0060.00715.66
7.1.220.0060.00715.72
7.1.210.0060.01015.68
7.1.200.0060.00815.64
7.1.190.0050.00615.66
7.1.180.0060.00815.64
7.1.170.0060.00615.50
7.1.160.0090.00815.52
7.1.150.0050.00815.65
7.1.140.0030.00915.75
7.1.130.0060.00815.75
7.1.120.0070.00615.67
7.1.110.0050.00915.61
7.1.100.0120.00414.64
7.1.90.0080.00615.71
7.1.80.0040.01015.40
7.1.70.0070.00815.94
7.1.60.0050.01116.66
7.1.50.0130.00520.43
7.1.40.0050.00915.49
7.1.30.0030.00715.56
7.1.20.0060.00915.60
7.1.10.0040.00815.75
7.1.00.0060.02217.27
7.0.330.0050.00515.43
7.0.320.0070.00615.36
7.0.310.0080.00515.36
7.0.300.0070.00615.34
7.0.290.0040.00815.16
7.0.280.0060.00515.29
7.0.270.0040.00915.33
7.0.260.0050.00715.17
7.0.250.0060.00715.29
7.0.240.0060.00815.32
7.0.230.0030.00815.24
7.0.220.0020.01215.40
7.0.210.0040.01015.35
7.0.200.0060.00615.68
7.0.190.0040.00715.26
7.0.180.0050.00615.28
7.0.170.0040.00815.31
7.0.160.0060.00615.33
7.0.150.0050.00915.28
7.0.140.0030.02416.87
7.0.130.0060.00415.29
7.0.120.0070.00615.38
7.0.110.0030.00815.23
7.0.100.0040.00915.30
7.0.90.0050.00815.32
7.0.80.0050.00815.42
7.0.70.0030.00615.31
7.0.60.0110.01716.46
7.0.50.0100.02315.99
7.0.40.0020.01915.05
7.0.30.0130.02115.08
7.0.20.0120.02315.16
7.0.10.0060.02815.09
7.0.00.0050.02315.18
5.6.400.0100.00414.51
5.6.390.0080.00414.02
5.6.380.0040.01114.12
5.6.370.0020.01114.32
5.6.360.0040.01014.37
5.6.350.0060.00814.34
5.6.340.0070.00714.45
5.6.330.0020.01014.35
5.6.320.0060.00714.32
5.6.310.0040.00914.41
5.6.300.0030.01214.32
5.6.290.0040.00714.23
5.6.280.0070.02216.03
5.6.270.0040.00914.35
5.6.260.0050.00714.18
5.6.250.0070.00614.37
5.6.240.0070.00714.14
5.6.230.0060.00614.29
5.6.220.0060.00514.25
5.6.210.0040.01715.84
5.6.200.0060.02015.10
5.6.190.0060.02715.69
5.6.180.0120.01615.78
5.6.170.0110.01915.84
5.6.160.0080.02515.79
5.6.150.0030.02615.31
5.6.140.0070.01515.28
5.6.130.0050.01915.21
5.6.120.0090.02415.91
5.6.110.0040.02715.85
5.6.100.0070.02115.79
5.6.90.0080.02415.81
5.6.80.0030.02715.65
5.6.70.0050.00914.10
5.6.60.0040.00914.23
5.6.50.0070.00814.21
5.6.40.0000.01114.22
5.6.30.0040.00814.20
5.6.20.0060.00714.18
5.6.10.0070.00614.11
5.6.00.0080.00714.10
5.5.380.0050.00713.04
5.5.370.0070.00412.91
5.5.360.0050.00613.17
5.5.350.1070.01714.80
5.5.340.0070.01814.24
5.5.330.0040.02314.97
5.5.320.0110.01514.81
5.5.310.0120.01214.97
5.5.300.0110.02114.32
5.5.290.0050.01814.27
5.5.280.0080.02214.98
5.5.270.0050.02315.06
5.5.260.0110.01615.02
5.5.250.0100.01214.88
5.5.240.0060.01314.79
5.5.230.0050.00413.11
5.5.220.0030.01012.98
5.5.210.0050.00812.95
5.5.200.0070.00512.93
5.5.190.0050.00613.14
5.5.180.0080.00413.03
5.5.170.0050.00813.00
5.5.160.0040.01112.94
5.5.150.0050.00613.03
5.5.140.0080.00513.06
5.5.130.0050.00813.02
5.5.120.0020.01013.03
5.5.110.0040.00712.93
5.5.100.0040.00813.06
5.5.90.0040.01012.97
5.5.80.0030.00812.96
5.5.70.0040.00912.83
5.5.60.0030.00913.00
5.5.50.0040.00812.85
5.5.40.0060.00413.10
5.5.30.0040.00913.14
5.5.20.0070.00512.96
5.5.10.0020.01012.97
5.5.00.0040.00612.93
5.4.450.0070.02013.44
5.4.440.0090.01813.41
5.4.430.0090.01713.49
5.4.420.0080.02613.56
5.4.410.0090.01513.44
5.4.400.0080.01813.39
5.4.390.0100.01613.25
5.4.380.0020.02013.10
5.4.370.0060.01713.22
5.4.360.0070.01713.26
5.4.350.0060.01613.10
5.4.340.0090.01613.28
5.4.330.0030.00811.34
5.4.320.0030.01511.70
5.4.310.0070.01211.70
5.4.300.0020.01711.68
5.4.290.0050.02211.65
5.4.280.0030.02111.61
5.4.270.0060.01611.69
5.4.260.0040.02711.58
5.4.250.0040.02511.62
5.4.240.0040.01711.58
5.4.230.0070.02311.52
5.4.220.0060.02011.50
5.4.210.0050.02711.54
5.4.200.0060.02411.55
5.4.190.0060.02011.69
5.4.180.0030.01511.58
5.4.170.0040.01511.52
5.4.160.0050.01311.54
5.4.150.0060.01211.60
5.4.140.0040.01511.59
5.4.130.0040.01611.54
5.4.120.0060.02311.61
5.4.110.0050.02111.53
5.4.100.0070.01711.57
5.4.90.0040.01811.48
5.4.80.0080.02311.42
5.4.70.0070.02111.49
5.4.60.0030.01911.56
5.4.50.0070.01911.53
5.4.40.0050.01811.46
5.4.30.0060.02111.47
5.4.20.0050.02011.52
5.4.10.0080.01411.53
5.4.00.0030.02211.38
5.3.290.0050.01411.58
5.3.280.0050.02011.47
5.3.270.0040.01911.51
5.3.260.0040.01811.51
5.3.250.0050.02311.52
5.3.240.0060.01711.44
5.3.230.0030.01811.47
5.3.220.0060.01611.44
5.3.210.0040.01911.35
5.3.200.0060.01711.39
5.3.190.0060.01611.44
5.3.180.0030.02011.47
5.3.170.0050.01711.43
5.3.160.0040.01811.52
5.3.150.0060.01811.50
5.3.140.0020.02011.41
5.3.130.0040.02011.44
5.3.120.0050.01911.43
5.3.110.0060.02111.49
5.3.100.0070.01811.31
5.3.90.0070.01911.29
5.3.80.0040.01811.25
5.3.70.0080.01711.29
5.3.60.0040.01911.29
5.3.50.0040.01711.19
5.3.40.0040.01611.27
5.3.30.0050.02111.29
5.3.20.0070.01911.20
5.3.10.0050.01711.06
5.3.00.0040.02211.09
5.2.170.0050.0309.35
5.2.160.0070.0349.34
5.2.150.0040.0369.32
5.2.140.0080.0239.18
5.2.130.0030.0279.27
5.2.120.0050.0269.20
5.2.110.0050.0259.32
5.2.100.0060.0269.32
5.2.90.0060.0229.27
5.2.80.0070.0309.25
5.2.70.0060.0329.28
5.2.60.0020.0289.18
5.2.50.0050.0229.12
5.2.40.0060.0209.25
5.2.30.0060.0249.09
5.2.20.0050.0239.13
5.2.10.0050.0239.06
5.2.00.0060.0328.97
5.1.60.0040.0188.62
5.1.50.0050.0238.62
5.1.40.0040.0228.61
5.1.30.0050.0238.78
5.1.20.0070.0198.79
5.1.10.0080.0208.66
5.1.00.0020.0308.65
5.0.50.0050.0147.90
5.0.40.0020.0197.83
5.0.30.0020.0287.73
5.0.20.0040.0157.72
5.0.10.0040.0137.71
5.0.00.0020.0187.70
4.4.90.0020.0146.98
4.4.80.0030.0096.96
4.4.70.0030.0106.97
4.4.60.0030.0096.96
4.4.50.0020.0106.97
4.4.40.0020.0176.94
4.4.30.0010.0126.97
4.4.20.0050.0117.01
4.4.10.0020.0137.01
4.4.00.0020.0196.97
4.3.110.0040.0106.92
4.3.100.0020.0126.92
4.3.90.0030.0136.90
4.3.80.0030.0186.88
4.3.70.0040.0126.90
4.3.60.0050.0116.90
4.3.50.0030.0156.90
4.3.40.0010.0206.86
4.3.30.0020.0146.23
4.3.20.0010.0136.22
4.3.10.0020.0146.20
4.3.00.0020.0148.26

preferences:
55.99 ms | 400 KiB | 5 Q