3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 5; $b = 6; function copyr($ar){ $ar[0] = $ar[1]; } copyr([&$a, &$b]); print_r($a); print_r($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)
8.3.70.0110.00418.18
8.3.60.0110.00318.43
8.3.50.0190.00221.11
8.3.40.0090.00518.61
8.3.30.0040.01119.09
8.3.20.0000.00820.20
8.3.10.0050.00223.66
8.3.00.0000.00819.56
8.2.190.0070.00718.01
8.2.180.0110.00416.38
8.2.170.0130.00622.96
8.2.160.0130.00020.38
8.2.150.0100.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0040.00422.04
8.2.110.0040.00420.94
8.2.100.0060.00617.91
8.2.90.0080.00019.05
8.2.80.0050.00317.97
8.2.70.0080.00317.63
8.2.60.0040.00717.93
8.2.50.0060.00318.07
8.2.40.0030.00520.07
8.2.30.0030.00618.30
8.2.20.0040.00417.79
8.2.10.0000.00718.11
8.2.00.0000.00717.98
8.1.280.0060.00925.92
8.1.270.0080.00020.42
8.1.260.0030.00526.35
8.1.250.0050.00228.09
8.1.240.0090.00022.81
8.1.230.0070.00419.16
8.1.220.0040.00417.74
8.1.210.0000.00718.77
8.1.200.0030.00617.35
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0040.00418.32
8.1.160.0040.00422.01
8.1.150.0040.00418.64
8.1.140.0000.00717.43
8.1.130.0030.00317.75
8.1.120.0000.00717.47
8.1.110.0040.00417.49
8.1.100.0070.00017.46
8.1.90.0040.00417.43
8.1.80.0030.00517.46
8.1.70.0000.00617.34
8.1.60.0000.00917.52
8.1.50.0030.00517.56
8.1.40.0030.00517.49
8.1.30.0050.00317.56
8.1.20.0000.00717.59
8.1.10.0040.00417.59
8.1.00.0020.00517.39
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0040.00418.43
8.0.270.0040.00417.31
8.0.260.0030.00317.21
8.0.250.0030.00316.98
8.0.240.0030.00316.97
8.0.230.0030.00316.95
8.0.220.0000.00716.89
8.0.210.0070.00016.75
8.0.200.0030.00316.96
8.0.190.0030.00316.95
8.0.180.0000.01016.94
8.0.170.0040.00416.87
8.0.160.0070.00016.93
8.0.150.0030.00516.78
8.0.140.0000.01216.83
8.0.130.0040.00413.30
8.0.120.0050.00316.87
8.0.110.0000.00716.77
8.0.100.0040.00416.85
8.0.90.0030.00616.83
8.0.80.0070.01416.95
8.0.70.0040.00416.68
8.0.60.0070.00017.00
8.0.50.0000.00716.77
8.0.30.0100.01116.77
8.0.20.0100.01217.40
8.0.10.0000.00717.02
8.0.00.0050.01216.70
7.4.330.0030.00315.03
7.4.320.0000.00616.52
7.4.300.0030.00316.63
7.4.290.0000.00716.53
7.4.280.0040.00416.60
7.4.270.0000.00716.52
7.4.260.0000.00816.59
7.4.250.0040.00416.37
7.4.240.0050.00216.49
7.4.230.0030.00316.60
7.4.220.0050.01716.60
7.4.210.0040.01116.60
7.4.200.0050.00216.70
7.4.160.0030.01316.48
7.4.150.0130.00617.40
7.4.140.0090.00917.86
7.4.130.0090.01016.53
7.4.120.0100.01016.54
7.4.110.0030.01316.63
7.4.100.0140.00616.52
7.4.90.0090.00616.52
7.4.80.0160.00219.39
7.4.70.0060.01116.45
7.4.60.0070.01016.41
7.4.50.0030.00616.22
7.4.40.0100.00616.54
7.4.30.0060.01016.41
7.4.10.0090.00714.95
7.4.00.0090.00814.95
7.3.330.0000.00713.18
7.3.320.0020.00213.19
7.3.310.0000.00716.39
7.3.300.0030.00316.25
7.3.290.0050.01116.36
7.3.280.0060.01116.40
7.3.270.0060.01217.40
7.3.260.0060.01116.29
7.3.250.0100.00616.44
7.3.240.0120.00416.35
7.3.230.0080.00816.43
7.3.210.0060.01016.39
7.3.200.0000.01619.39
7.3.190.0040.01116.21
7.3.180.0090.01216.69
7.3.170.0100.01016.57
7.3.160.0130.00316.66
7.3.130.0080.00915.04
7.3.120.0070.01014.76
7.3.110.0080.00914.79
7.3.100.0030.01014.81
7.3.90.0070.00414.74
7.3.80.0020.01114.67
7.3.70.0060.00514.77
7.3.60.0040.00714.63
7.3.50.0040.00614.74
7.3.40.0010.01214.77
7.3.30.0050.00814.61
7.3.20.0040.00916.67
7.3.10.0070.00716.67
7.3.00.0080.00716.74
7.2.330.0130.00616.67
7.2.320.0060.01316.26
7.2.310.0120.00616.68
7.2.300.0030.01416.66
7.2.290.0120.00416.66
7.2.260.0040.01314.87
7.2.250.0080.01115.03
7.2.240.0080.00614.74
7.2.230.0070.00714.87
7.2.220.0090.00614.98
7.2.210.0020.01015.00
7.2.200.0030.01114.90
7.2.190.0000.01214.91
7.2.180.0050.00815.05
7.2.170.0050.00914.93
7.2.160.0060.00615.01
7.2.150.0090.00616.78
7.2.140.0070.00816.83
7.2.130.0030.01216.84
7.2.120.0030.00716.85
7.2.110.0050.00916.98
7.2.100.0050.00916.81
7.2.90.0030.01316.91
7.2.80.0030.00916.87
7.2.70.0070.01016.75
7.2.60.0050.00816.81
7.2.50.0030.01016.65
7.2.40.0070.00616.73
7.2.30.0080.00817.00
7.2.20.0050.00516.78
7.2.10.0090.00516.89
7.2.00.0040.01017.73
7.1.330.0080.00515.99
7.1.320.0100.00415.72
7.1.310.0070.00715.99
7.1.300.0040.00715.66
7.1.290.0050.00715.92
7.1.280.0050.00915.89
7.1.270.0060.00415.84
7.1.260.0020.01115.85
7.1.250.0060.00615.81
7.1.240.0030.00815.76
7.1.230.0060.00615.72
7.1.220.0090.00215.79
7.1.210.0070.00615.86
7.1.200.0070.00715.84
7.1.190.0030.00815.82
7.1.180.0060.00515.75
7.1.170.0110.00315.55
7.1.160.0040.00815.69
7.1.150.0100.00315.86
7.1.140.0000.01015.89
7.1.130.0080.00515.53
7.1.120.0040.00515.75
7.1.110.0090.00415.82
7.1.100.0050.00516.43
7.1.90.0070.00615.70
7.1.80.0020.01315.74
7.1.70.0040.00716.20
7.1.60.0050.00917.03
7.1.50.0080.00816.06
7.1.40.0070.00815.71
7.1.30.0060.00715.74
7.1.20.0020.01015.78
7.1.10.0070.00515.53
7.1.00.0030.03018.00
7.0.330.0080.00315.18
7.0.320.0040.00515.53
7.0.310.0030.00915.23
7.0.300.0030.00915.40
7.0.290.0050.00515.31
7.0.280.0060.00715.36
7.0.270.0020.00815.18
7.0.260.0080.00515.45
7.0.250.0040.00815.48
7.0.240.0020.00815.42
7.0.230.0010.00715.42
7.0.220.0060.00515.54
7.0.210.0110.00215.50
7.0.200.0060.00915.18
7.0.190.0080.00615.33
7.0.180.0030.00515.49
7.0.170.0060.00415.46
7.0.160.0040.00715.16
7.0.150.0040.00815.28
7.0.140.0020.01215.39
7.0.130.0040.00815.61
7.0.120.0050.00815.41
7.0.110.0040.00715.42
7.0.100.0070.00615.09
7.0.90.0060.00515.47
7.0.80.0010.01115.56
7.0.70.0050.00715.39
7.0.60.0060.02417.06
7.0.50.0050.02016.15
7.0.40.0040.02715.60
7.0.30.0110.02915.72
7.0.20.0110.02815.66
7.0.10.0090.03115.68
7.0.00.0050.03315.62
5.6.400.0100.00414.45
5.6.390.0020.01214.53
5.6.380.0020.00814.44
5.6.370.0090.00414.43
5.6.360.0040.00514.31
5.6.350.0050.00814.46
5.6.340.0040.00814.32
5.6.330.0030.00814.44
5.6.320.0030.01014.62
5.6.310.0030.00914.31
5.6.300.0080.00314.16
5.6.290.0060.00614.36
5.6.280.0060.02716.54
5.6.270.0050.01114.23
5.6.260.0030.01214.15
5.6.250.0060.00614.68
5.6.240.0050.00914.32
5.6.230.0080.00514.38
5.6.220.0090.00514.35
5.6.210.0120.02716.48
5.6.200.0030.03415.57
5.6.190.0110.02216.56
5.6.180.0220.02816.37
5.6.170.0140.02716.37
5.6.160.0080.02916.29
5.6.150.0080.02615.76
5.6.140.0080.01815.55
5.6.130.0070.02215.60
5.6.120.0050.01916.61
5.6.110.0040.01916.67
5.6.100.0080.03116.40
5.6.90.0040.01816.62
5.6.80.0080.02816.38
5.6.70.0020.00614.41
5.6.60.0050.00714.27
5.6.50.0040.00714.13
5.6.40.0050.00714.13
5.6.30.0030.00814.32
5.6.20.0080.00914.36
5.6.10.0030.00914.25
5.6.00.0060.00714.27
5.5.380.0030.01014.34
5.5.370.0040.00914.31
5.5.360.0020.01214.34
5.5.350.0100.03416.23
5.5.340.0090.02615.42
5.5.330.0050.02316.33
5.5.320.0130.03316.39
5.5.310.0150.02216.40
5.5.300.0100.02815.52
5.5.290.0110.02115.61
5.5.280.0110.03016.36
5.5.270.0030.01816.42
5.5.260.0050.03116.52
5.5.250.0100.01916.32
5.5.240.0070.02916.19
5.5.230.0030.00814.31
5.5.220.0090.00614.14
5.5.210.0060.00614.35
5.5.200.0080.00614.15
5.5.190.0030.00614.29
5.5.180.0020.01214.16
5.5.170.0070.00614.19
5.5.160.0060.00714.20
5.5.150.0030.01114.30
5.5.140.0050.00714.05
5.5.130.0040.00814.23
5.5.120.0040.00714.27
5.5.110.0040.00514.21
5.5.100.0070.00514.35
5.5.90.0070.00514.25
5.5.80.0060.00614.45
5.5.70.0060.01014.20
5.5.60.0070.00514.21
5.5.50.0050.01114.32
5.5.40.0140.00214.23
5.5.30.0050.00614.24
5.5.20.0070.00714.22
5.5.10.0070.00414.10
5.5.00.0050.01013.98
5.4.450.0190.03113.93
5.4.440.0320.02413.96
5.4.430.0090.02013.84
5.4.420.0060.02713.86
5.4.410.0060.02113.94
5.4.400.0090.01713.90
5.4.390.0060.02113.65
5.4.380.0110.01713.65
5.4.370.0050.02013.74
5.4.360.0070.01813.79
5.4.350.0070.02113.76
5.4.340.0010.02813.85
5.4.330.0020.00511.19
5.4.320.0020.02413.79
5.4.310.0040.02413.82
5.4.300.0090.01913.73
5.4.290.0120.01613.83
5.4.280.0050.02513.82
5.4.270.0060.02213.73
5.4.260.0040.02513.65
5.4.250.0060.02213.91
5.4.240.0050.02313.81
5.4.230.0060.01913.81
5.4.220.0080.02213.64
5.4.210.0100.02013.61
5.4.200.0100.01813.00
5.4.190.0080.01913.78
5.4.180.0050.02313.78
5.4.170.0070.02013.59
5.4.160.0070.02013.59
5.4.150.0080.02013.73
5.4.140.0020.02312.90
5.4.130.0070.02112.90
5.4.120.0100.01912.87
5.4.110.0080.01912.88
5.4.100.0070.02012.72
5.4.90.0060.02112.79
5.4.80.0060.02112.69
5.4.70.0040.02312.73
5.4.60.0020.02512.93
5.4.50.0110.02312.75
5.4.40.0050.02312.85
5.4.30.0060.02012.94
5.4.20.0060.02312.74
5.4.10.0100.02012.65
5.4.00.0050.02012.66
5.3.290.0100.05314.81
5.3.280.0100.05014.75
5.3.270.0130.05014.46
5.3.260.0200.04714.59
5.3.250.0200.04314.72
5.3.240.0030.05714.50
5.3.230.0130.04714.58
5.3.220.0230.06014.43
5.3.210.0200.07014.50
5.3.200.0270.03314.49
5.3.190.0170.04714.59
5.3.180.0130.04714.62
5.3.170.0100.05014.49
5.3.160.0130.04714.63
5.3.150.0030.06314.46
5.3.140.0200.04314.67
5.3.130.0170.04714.46
5.3.120.0030.06014.53
5.3.110.0130.04714.49
5.3.100.0170.05314.05
5.3.90.0130.05013.93
5.3.80.0030.05314.00
5.3.70.0070.05013.96
5.3.60.0070.05713.86
5.3.50.0070.05013.88
5.3.40.0170.05713.88
5.3.30.0170.06014.07
5.3.20.0130.04313.70
5.3.10.0100.05013.62
5.3.00.0070.05313.65
5.2.170.0030.04311.30
5.2.160.0000.04711.22
5.2.150.0030.04711.07
5.2.140.0030.04311.13
5.2.130.0070.04011.07
5.2.120.0000.04710.96
5.2.110.0100.04010.96
5.2.100.0030.04311.11
5.2.90.0130.03011.26
5.2.80.0100.03711.04
5.2.70.0130.03711.00
5.2.60.0070.04011.16
5.2.50.0000.04710.88
5.2.40.0100.03710.91
5.2.30.0100.03710.87
5.2.20.0030.04010.99
5.2.10.0030.04310.78
5.2.00.0100.04010.64
5.1.60.0070.0339.91
5.1.50.0030.04310.10
5.1.40.0100.0309.91
5.1.30.0130.03010.29
5.1.20.0100.03310.30
5.1.10.0070.0479.95
5.1.00.0030.04310.06
5.0.50.0030.0308.47
5.0.40.0100.0208.39
5.0.30.0070.0408.22
5.0.20.0000.0308.30
5.0.10.0000.0308.29
5.0.00.0030.0438.08
4.4.90.0000.0235.76
4.4.80.0000.0235.77
4.4.70.0000.0235.85
4.4.60.0070.0275.85
4.4.50.0000.0235.74
4.4.40.0130.0235.91
4.4.30.0000.0235.74
4.4.20.0100.0135.88
4.4.10.0030.0235.96
4.4.00.0030.0335.76
4.3.110.0030.0235.77
4.3.100.0030.0205.83
4.3.90.0030.0205.66
4.3.80.0030.0305.81
4.3.70.0000.0235.79
4.3.60.0000.0235.73
4.3.50.0070.0205.78
4.3.40.0030.0335.77
4.3.30.0070.0174.57
4.3.20.0000.0234.43
4.3.10.0030.0304.36
4.3.00.0170.0206.95

preferences:
61.4 ms | 401 KiB | 5 Q