3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b = 2; $a = &$b; var_dump( $a );

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)
8.3.40.0070.00718.72
8.3.30.0030.01018.84
8.3.20.0040.00420.13
8.3.10.0000.00822.14
8.3.00.0040.00422.44
8.2.170.0100.01022.96
8.2.160.0100.01019.07
8.2.150.0090.00024.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0000.00819.36
8.2.110.0070.00322.00
8.2.100.0080.00417.59
8.2.90.0040.00420.55
8.2.80.0030.00617.97
8.2.70.0040.00417.93
8.2.60.0040.00417.91
8.2.50.0040.00418.10
8.2.40.0070.00020.61
8.2.30.0000.00818.04
8.2.20.0000.00717.49
8.2.10.0000.00817.59
8.2.00.0070.00017.56
8.1.270.0030.00622.03
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0040.00420.91
8.1.230.0030.00820.95
8.1.220.0040.00417.74
8.1.210.0040.00418.89
8.1.200.0060.00617.23
8.1.190.0050.00317.00
8.1.180.0040.00418.10
8.1.170.0000.00818.71
8.1.160.0000.00722.17
8.1.150.0060.00318.54
8.1.140.0040.00417.34
8.1.130.0000.00717.73
8.1.120.0030.00517.37
8.1.110.0080.00017.28
8.1.100.0000.00717.36
8.1.90.0030.00517.27
8.1.80.0050.00217.41
8.1.70.0030.00317.27
8.1.60.0060.00317.56
8.1.50.0050.00217.50
8.1.40.0040.00417.38
8.1.30.0070.00017.50
8.1.20.0000.00817.56
8.1.10.0000.00817.30
8.1.00.0040.00417.30
8.0.300.0030.00619.79
8.0.290.0000.00816.63
8.0.280.0000.00818.36
8.0.270.0000.00717.15
8.0.260.0060.00016.75
8.0.250.0030.00316.84
8.0.240.0000.00916.89
8.0.230.0000.00716.91
8.0.220.0000.00716.69
8.0.210.0030.00316.82
8.0.200.0060.00016.77
8.0.190.0000.00816.75
8.0.180.0040.00416.72
8.0.170.0030.00516.84
8.0.160.0000.00816.72
8.0.150.0030.00616.80
8.0.140.0000.00716.68
8.0.130.0050.00013.28
8.0.120.0080.00016.84
8.0.110.0000.00816.71
8.0.100.0000.00816.86
8.0.90.0000.00716.84
8.0.80.0090.00616.86
8.0.70.0040.00416.73
8.0.60.0070.00016.94
8.0.50.0040.00416.88
8.0.30.0070.01217.00
8.0.20.0130.01117.40
8.0.10.0000.00716.74
8.0.00.0070.01116.71
7.4.330.0030.00315.00
7.4.320.0000.00616.48
7.4.300.0060.00016.44
7.4.290.0080.00016.56
7.4.280.0080.00016.52
7.4.270.0060.00016.56
7.4.260.0000.00716.34
7.4.250.0040.00416.29
7.4.240.0050.00216.39
7.4.230.0000.00716.48
7.4.220.0130.00916.37
7.4.210.0070.00716.45
7.4.200.0070.00016.31
7.4.190.0030.00316.40
7.4.160.0120.00316.57
7.4.150.0170.00017.40
7.4.140.0100.00817.86
7.4.130.0140.00616.46
7.4.120.0090.01116.29
7.4.110.0100.00716.30
7.4.100.0130.00616.46
7.4.90.0090.00916.28
7.4.80.0040.01219.39
7.4.70.0050.01416.42
7.4.60.0070.01016.38
7.4.50.0000.00516.27
7.4.40.0070.00722.77
7.4.30.0110.01116.32
7.4.10.0000.01415.06
7.4.00.0080.01014.90
7.3.330.0000.00513.02
7.3.320.0000.00512.87
7.3.310.0050.00216.21
7.3.300.0050.00215.98
7.3.290.0030.01016.11
7.3.280.0090.00616.14
7.3.270.0100.00717.40
7.3.260.0030.01316.24
7.3.250.0090.01216.15
7.3.240.0090.00616.20
7.3.230.0070.01316.39
7.3.210.0130.01016.09
7.3.200.0120.00919.39
7.3.190.0030.01316.07
7.3.180.0110.00516.37
7.3.170.0060.01516.27
7.3.160.0060.00916.26
7.3.130.0110.00714.63
7.3.120.0080.00814.76
7.3.110.0070.00714.65
7.3.100.0030.01114.58
7.3.90.0080.00514.72
7.3.80.0040.00614.66
7.3.70.0010.00914.46
7.3.60.0050.00814.45
7.3.50.0100.00114.46
7.3.40.0070.00814.75
7.3.30.0080.00414.54
7.3.20.0020.01416.40
7.3.10.0050.00916.30
7.3.00.0070.00516.31
7.2.330.0060.01116.48
7.2.320.0090.00916.16
7.2.310.0070.01016.31
7.2.300.0070.01016.64
7.2.290.0120.00416.38
7.2.260.0120.00614.81
7.2.250.0070.00914.93
7.2.240.0100.00814.47
7.2.230.0070.00814.70
7.2.220.0090.00714.89
7.2.210.0090.00314.71
7.2.200.0030.01214.84
7.2.190.0030.01214.92
7.2.180.0080.00714.86
7.2.170.0040.01114.94
7.2.160.0000.01714.78
7.2.150.0090.00616.77
7.2.140.0000.00916.75
7.2.130.0050.00816.53
7.2.120.0060.00716.68
7.2.110.0030.00716.37
7.2.100.0060.00616.54
7.2.90.0080.00616.53
7.2.80.0020.00916.76
7.2.70.0070.00516.52
7.2.60.0030.00816.67
7.2.50.0010.01116.43
7.2.40.0030.01116.45
7.2.30.0080.00516.60
7.2.20.0020.01216.67
7.2.10.0050.00816.47
7.2.00.0110.00317.42
7.1.330.0060.00815.38
7.1.320.0050.00715.81
7.1.310.0080.00415.64
7.1.300.0000.01215.54
7.1.290.0060.00715.59
7.1.280.0090.00615.82
7.1.270.0070.00615.79
7.1.260.0060.00615.81
7.1.250.0050.00515.60
7.1.240.0070.00715.69
7.1.230.0030.00615.79
7.1.220.0070.00415.61
7.1.210.0030.00715.77
7.1.200.0090.00615.57
7.1.190.0080.00615.88
7.1.180.0000.01015.64
7.1.170.0060.00615.64
7.1.160.0060.00515.63
7.1.150.0070.00415.68
7.1.140.0030.01015.40
7.1.130.0040.00415.75
7.1.120.0060.00315.41
7.1.110.0080.00315.89
7.1.100.0040.00916.92
7.1.90.0030.00715.87
7.1.80.0070.00315.79
7.1.70.0040.01116.41
7.1.60.0080.01117.72
7.1.50.0100.00816.25
7.1.40.0000.01415.73
7.1.30.0060.00915.75
7.1.20.0040.00815.61
7.1.10.0080.01115.82
7.1.00.0050.04119.12
7.0.330.0030.00915.30
7.0.320.0040.01215.48
7.0.310.0070.00715.29
7.0.300.0030.01015.32
7.0.290.0060.00315.32
7.0.280.0030.01415.28
7.0.270.0030.01015.13
7.0.260.0070.00715.25
7.0.250.0060.00615.28
7.0.240.0030.00615.44
7.0.230.0130.00315.49
7.0.220.0070.00715.36
7.0.210.0050.00515.21
7.0.200.0090.00615.99
7.0.190.0030.01015.05
7.0.180.0030.00615.54
7.0.170.0080.00415.51
7.0.160.0040.01415.39
7.0.150.0100.00315.47
7.0.140.0080.03318.57
7.0.130.0080.00415.38
7.0.120.0030.00515.42
7.0.110.0030.00715.39
7.0.100.0030.01215.19
7.0.90.0100.00715.36
7.0.80.0060.01015.35
7.0.70.0070.00315.18
7.0.60.0030.02517.61
7.0.50.0050.02916.65
7.0.40.0050.02616.78
7.0.30.0190.04016.56
7.0.20.0160.03316.62
7.0.10.0140.04316.70
7.0.00.0020.02916.84
5.6.400.0030.01014.40
5.6.390.0030.01014.22
5.6.380.0070.00714.34
5.6.370.0060.01013.77
5.6.360.0070.00714.22
5.6.350.0100.00714.13
5.6.340.0060.01014.30
5.6.330.0130.00314.16
5.6.320.0000.01713.85
5.6.310.0000.01514.21
5.6.300.0030.01013.98
5.6.290.0030.01214.15
5.6.280.0070.03817.67
5.6.270.0060.00314.07
5.6.260.0070.00414.27
5.6.250.0070.01014.39
5.6.240.0000.01514.20
5.6.230.0030.01013.88
5.6.220.0040.01114.36
5.6.210.0050.03917.38
5.6.200.0090.02816.23
5.6.190.0130.03217.43
5.6.180.1750.02117.22
5.6.170.0070.02817.37
5.6.160.0050.02317.35
5.6.150.0080.04216.10
5.6.140.0070.03416.15
5.6.130.0050.02316.14
5.6.120.0120.03917.49
5.6.110.0080.04517.42
5.6.100.0120.03917.70
5.6.90.0070.04517.65
5.6.80.0120.03717.31
5.6.70.0220.03517.08
5.6.60.0030.01013.89
5.6.50.0080.00314.18
5.6.40.0070.00713.78
5.6.30.0070.01014.10
5.6.20.0060.00614.07
5.6.10.0030.00514.03
5.6.00.0080.00813.85
5.5.380.0070.01014.20
5.5.370.0040.00713.50
5.5.360.0070.01014.23
5.5.350.0080.04017.17
5.5.340.0060.04516.04
5.5.330.0100.04517.01
5.5.320.0130.04117.11
5.5.310.0120.02516.97
5.5.300.0040.04515.80
5.5.290.0070.04715.87
5.5.280.0070.03217.23
5.5.270.0100.04017.41
5.5.260.0120.04217.33
5.5.250.0050.04517.26
5.5.240.0030.03117.11
5.5.230.0110.00313.68
5.5.220.0090.00613.91
5.5.210.0030.01014.14
5.5.200.0050.00913.86
5.5.190.0000.01213.52
5.5.180.0070.01313.90
5.5.170.0110.00314.03
5.5.160.0040.01513.80
5.5.150.0100.00514.14
5.5.140.0110.01113.88
5.5.130.0040.01114.13
5.5.120.0060.01413.59
5.5.110.0040.01214.07
5.5.100.0060.00913.84
5.5.90.0100.00313.85
5.5.80.0100.00313.77
5.5.70.0080.00313.88
5.5.60.0080.00813.71
5.5.50.0090.00313.89
5.5.40.0040.00813.70
5.5.30.0030.01313.81
5.5.20.0070.01013.97
5.5.10.0050.00513.65
5.5.00.0100.00313.62
5.4.450.0490.02515.12
5.4.440.0520.03514.81
5.4.430.0380.03215.10
5.4.420.0070.03014.97
5.4.410.0350.03615.05
5.4.400.0370.00614.63
5.4.390.0400.00414.54
5.4.380.0100.03314.66
5.4.370.0100.03114.58
5.4.360.0180.02214.59
5.4.350.0110.03314.71
5.4.340.0080.03314.65
5.4.330.0030.00610.75
5.4.320.0060.02111.68
5.4.310.0050.02311.43
5.4.300.0070.02111.43
5.4.290.0040.02411.59
5.4.280.0100.01611.51
5.4.270.0050.02611.42
5.4.260.0080.04014.77
5.4.250.0080.04114.63
5.4.240.0060.04314.61
5.4.230.0120.03214.84
5.4.220.0060.02814.66
5.4.210.0100.03014.64
5.4.200.0090.03514.79
5.4.190.0080.03814.71
5.4.180.0020.03014.72
5.4.170.0090.02815.03
5.4.160.0040.03214.90
5.4.150.0110.03114.86
5.4.140.0060.03113.58
5.4.130.0070.02713.50
5.4.120.0150.02313.39
5.4.110.0110.02813.64
5.4.100.0080.02813.50
5.4.90.0030.03813.59
5.4.80.0100.02513.70
5.4.70.0120.03313.45
5.4.60.0070.02813.38
5.4.50.0100.02713.41
5.4.40.0050.02913.63
5.4.30.0060.02813.31
5.4.20.0090.03113.41
5.4.10.0110.03213.42
5.4.00.0130.03013.18
5.3.290.0040.02111.60
5.3.280.0100.02512.36
5.3.270.0070.04012.48
5.3.260.0060.04312.42
5.3.250.0080.02812.38
5.3.240.0100.03612.41
5.3.230.0110.02612.52
5.3.220.0070.04212.44
5.3.210.0080.04012.45
5.3.200.0020.03612.32
5.3.190.0100.03712.51
5.3.180.0100.02912.42
5.3.170.0080.02812.43
5.3.160.0050.03012.46
5.3.150.0040.04412.43
5.3.140.0030.04612.37
5.3.130.0080.03012.41
5.3.120.0060.04012.41
5.3.110.0060.03812.48
5.3.100.0060.03612.25
5.3.90.0080.02612.30
5.3.80.0050.03012.14
5.3.70.0050.02812.15
5.3.60.0030.03012.05
5.3.50.0080.03512.01
5.3.40.0060.02811.86
5.3.30.0100.02512.13
5.3.20.0090.02311.89
5.3.10.0050.02911.78
5.3.00.0100.03311.86
5.2.170.0100.03711.16
5.2.160.0100.04011.07
5.2.150.0070.04011.07
5.2.140.0130.04011.23
5.2.130.0130.05010.93
5.2.120.0070.05011.11
5.2.110.0100.04011.11
5.2.100.0070.05711.00
5.2.90.0070.04711.19
5.2.80.0070.05010.85
5.2.70.0070.05311.00
5.2.60.0070.06010.95
5.2.50.0030.04710.92
5.2.40.0000.04711.01
5.2.30.0030.05010.80
5.2.20.0170.04710.86
5.2.10.0070.03710.69
5.2.00.0070.04310.77
5.1.60.0100.03010.08
5.1.50.0030.03710.04
5.1.40.0070.0339.88
5.1.30.0030.04310.39
5.1.20.0030.05710.32
5.1.10.0070.04710.29
5.1.00.0070.05010.10
5.0.50.0070.0278.69
5.0.40.0100.0238.55
5.0.30.0030.0578.15
5.0.20.0100.0308.25
5.0.10.0070.0337.99
5.0.00.0070.0438.21
4.4.90.0000.0277.23
4.4.80.0100.0177.23
4.4.70.0030.0207.23
4.4.60.0070.0207.23
4.4.50.0030.0237.23
4.4.40.0030.0477.23
4.4.30.0030.0237.23
4.4.20.0030.0237.23
4.4.10.0030.0207.23
4.4.00.0030.0477.23
4.3.110.0070.0277.23
4.3.100.0030.0277.23
4.3.90.0030.0277.23
4.3.80.0000.0377.23
4.3.70.0030.0307.23
4.3.60.0070.0237.23
4.3.50.0070.0237.23
4.3.40.0030.0477.23
4.3.30.0070.0207.23
4.3.20.0070.0177.23
4.3.10.0030.0207.23
4.3.00.0130.0206.96

preferences:
45.38 ms | 400 KiB | 5 Q