3v4l.org

run code in 300+ PHP versions simultaneously
<?php $buffer = -1; function callback($output) { global $buffer; $buffer = $output; return $output; } ob_start('callback'); echo 'hello'; $a = ob_get_contents(); ob_get_clean(); echo $a; var_dump($buffer);

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)
8.3.60.0070.01016.38
8.3.50.0110.00621.92
8.3.40.0140.00718.66
8.3.30.0070.00719.04
8.3.20.0040.00420.12
8.3.10.0060.00323.61
8.3.00.0040.00419.13
8.2.180.0110.00416.50
8.2.170.0140.00722.96
8.2.160.0100.00320.47
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0000.01426.16
8.2.120.0080.00022.16
8.2.110.0060.00322.20
8.2.100.0080.00417.91
8.2.90.0030.00519.08
8.2.80.0000.00817.97
8.2.70.0110.00017.59
8.2.60.0070.00018.04
8.2.50.0080.00018.07
8.2.40.0060.00319.88
8.2.30.0040.00418.12
8.2.20.0000.00817.73
8.2.10.0070.00018.17
8.2.00.0070.00017.65
8.1.280.0110.00425.92
8.1.270.0000.00823.71
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00323.91
8.1.230.0080.00319.16
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0030.00617.25
8.1.190.0030.00517.43
8.1.180.0060.00318.10
8.1.170.0040.00418.32
8.1.160.0040.00421.94
8.1.150.0100.00018.55
8.1.140.0040.00417.32
8.1.130.0070.00017.74
8.1.120.0000.00717.26
8.1.110.0080.00017.28
8.1.100.0040.00317.29
8.1.90.0000.00717.35
8.1.80.0000.00717.45
8.1.70.0040.00417.34
8.1.60.0000.00717.34
8.1.50.0050.00317.43
8.1.40.0000.00817.49
8.1.30.0030.00517.43
8.1.20.0080.00017.62
8.1.10.0030.00617.46
8.1.00.0040.00417.36
8.0.300.0060.00320.73
8.0.290.0020.00517.16
8.0.280.0020.00518.34
8.0.270.0070.00017.19
8.0.260.0000.00617.14
8.0.250.0000.00716.86
8.0.240.0000.00716.88
8.0.230.0030.00316.84
8.0.220.0040.00416.86
8.0.210.0030.00316.82
8.0.200.0000.00616.86
8.0.190.0080.00016.86
8.0.180.0040.00416.78
8.0.170.0000.00816.90
8.0.160.0000.00716.84
8.0.150.0070.00016.72
8.0.140.0000.00916.79
8.0.130.0000.00513.28
8.0.120.0050.00216.77
8.0.110.0040.00416.89
8.0.100.0040.00416.86
8.0.90.0080.00016.67
8.0.80.0030.01116.70
8.0.70.0000.00716.70
8.0.60.0000.00716.88
8.0.50.0070.00016.84
8.0.30.0130.00616.91
8.0.20.0160.00517.40
8.0.10.0050.00316.91
8.0.00.0050.01216.82
7.4.330.0050.00015.02
7.4.320.0060.00016.54
7.4.300.0030.00316.43
7.4.290.0000.00716.54
7.4.280.0040.00416.42
7.4.270.0070.00016.36
7.4.260.0030.00316.51
7.4.250.0000.00816.50
7.4.240.0060.00116.42
7.4.230.0070.00016.23
7.4.220.0030.01416.50
7.4.210.0080.00916.49
7.4.200.0000.00716.57
7.4.190.0030.00416.54
7.4.160.0030.01316.50
7.4.150.0090.00917.40
7.4.140.0110.01117.86
7.4.130.0100.00716.54
7.4.120.0100.00716.48
7.4.110.0090.00916.46
7.4.100.0030.01516.24
7.4.90.0170.01416.52
7.4.80.0120.00619.39
7.4.70.0270.01016.45
7.4.60.0090.00916.21
7.4.50.0040.00416.30
7.4.40.0150.00416.36
7.4.30.0120.00416.31
7.4.00.0060.01114.87
7.3.330.0000.00513.30
7.3.320.0020.00213.32
7.3.310.0040.00416.39
7.3.300.0000.00716.27
7.3.290.0070.00716.30
7.3.280.0060.00816.27
7.3.270.0090.01217.40
7.3.260.0100.00716.31
7.3.250.0030.01516.43
7.3.240.0140.00316.42
7.3.230.0100.00716.54
7.3.210.0160.00716.38
7.3.200.0120.00619.39
7.3.190.0120.00916.55
7.3.180.0110.00416.22
7.3.170.0100.00616.36
7.3.160.0110.00716.48
7.3.120.0090.00814.86
7.3.110.0060.01114.55
7.3.100.0050.01014.76
7.3.90.0040.00614.82
7.3.80.0030.01114.91
7.3.70.0070.00714.75
7.3.60.0080.00514.74
7.3.50.0050.00914.76
7.3.40.0020.00914.63
7.3.30.0050.00814.96
7.3.20.0050.00916.51
7.3.10.0030.00916.62
7.3.00.0030.01116.81
7.2.330.0110.01116.72
7.2.320.0060.01016.68
7.2.310.0110.01216.63
7.2.300.0080.00816.63
7.2.290.0140.00916.63
7.2.250.0070.01015.04
7.2.240.0090.01015.21
7.2.230.0090.00714.99
7.2.220.0050.00815.04
7.2.210.0030.00914.98
7.2.200.0080.00314.92
7.2.190.0050.01015.00
7.2.180.0080.00815.03
7.2.170.0040.01015.03
7.1.330.0050.00915.70
7.1.320.0090.00515.76
7.1.310.0050.00915.90
7.1.300.0010.01115.91
7.1.290.0040.00915.71
7.1.280.0070.00415.85
7.1.270.0020.01315.81
7.1.260.0050.00915.64
7.1.70.0000.01117.10
7.1.60.0090.01519.46
7.1.50.0100.01316.80
7.1.00.0070.07022.27
7.0.200.0030.00716.82
7.0.140.0170.06022.12
7.0.60.0100.06320.09
7.0.50.0100.06017.87
7.0.40.0130.08020.26
7.0.30.0330.07320.16
7.0.20.0300.05320.33
7.0.10.0130.08020.23
7.0.00.0100.07720.06
5.6.280.0030.07321.13
5.6.210.0100.07720.57
5.6.200.0100.08018.22
5.6.190.0100.04020.57
5.6.180.0470.06720.41
5.6.170.0270.03320.71
5.6.160.0030.04720.50
5.6.150.0070.07318.19
5.6.140.0130.06718.14
5.6.130.0000.08018.29
5.6.120.0030.06721.13
5.6.110.0130.05021.12
5.6.100.0100.08721.09
5.6.90.0070.07721.00
5.6.80.0070.08020.34
5.5.350.4330.03320.42
5.5.340.0030.04318.05
5.5.330.0070.04020.28
5.5.320.0170.04320.47
5.5.310.0400.06720.36
5.5.300.0100.03317.98
5.5.290.0100.06017.98
5.5.280.0130.07720.80
5.5.270.0070.06020.77
5.5.260.0100.06320.89
5.5.250.0170.07720.69
5.5.240.0070.07320.19
5.4.450.0400.05719.38
5.4.440.0300.07019.48
5.4.430.0230.05019.32
5.4.420.0200.05319.47
5.4.410.0100.06019.35
5.4.400.0100.05719.14
5.4.390.0270.06719.29
5.4.380.0100.05718.80
5.4.370.0230.04318.59
5.4.360.0170.04718.76
5.4.350.0030.06318.79
5.4.340.0070.05718.75
5.4.320.0050.03812.50
5.4.310.0060.03912.50
5.4.300.0040.04212.50
5.4.290.0060.04112.49
5.4.280.0070.04012.38
5.4.270.0050.04712.38
5.4.260.0060.05312.38
5.4.250.0090.03712.38
5.4.240.0060.05112.39
5.4.230.0090.05212.38
5.4.220.0100.07212.38
5.4.210.0070.06012.38
5.4.200.0120.06812.38
5.4.190.0140.04812.38
5.4.180.0060.05012.37
5.4.170.0080.05012.38
5.4.160.0060.05112.38
5.4.150.0090.06212.37
5.4.140.0120.07512.05
5.4.130.0070.04512.05
5.4.120.0090.04412.00
5.4.110.0070.05612.00
5.4.100.0120.04312.00
5.4.90.0090.05511.99
5.4.80.0050.04012.00
5.4.70.0080.03411.99
5.4.60.0060.04311.99
5.4.50.0060.04211.99
5.4.40.0070.04111.98
5.4.30.0040.05011.98
5.4.20.0170.05011.98
5.4.10.0050.03611.98
5.4.00.0060.03611.47
5.3.290.0070.03812.80
5.3.280.0060.03812.71
5.3.270.0050.04012.72
5.3.260.0070.05212.72
5.3.250.0070.05612.72
5.3.240.0100.04612.72
5.3.230.0110.05612.71
5.3.220.0060.04412.68
5.3.210.0060.04812.68
5.3.200.0020.04412.68
5.3.190.0040.04312.68
5.3.180.0080.04112.68
5.3.170.0070.04012.67
5.3.160.0090.04812.67
5.3.150.0240.09912.67
5.3.140.0070.05112.66
5.3.130.0100.04112.65
5.3.120.0060.04012.66
5.3.110.0060.04012.66
5.3.100.0090.03912.12
5.3.90.0110.03212.10
5.3.80.0070.03612.09
5.3.70.0080.03412.09
5.3.60.0040.04412.08
5.3.50.0070.03512.03
5.3.40.0040.03912.03
5.3.30.0090.04511.98
5.3.20.0130.08611.77
5.3.10.0120.04811.73
5.3.00.0060.04811.72
5.2.170.0050.0369.22
5.2.160.0060.0409.22
5.2.150.0070.0409.22
5.2.140.0120.0569.22
5.2.130.0080.0449.18
5.2.120.0070.0309.18
5.2.110.0090.0299.18
5.2.100.0080.0319.18
5.2.90.0070.0279.17
5.2.80.0040.0359.18
5.2.70.0040.0369.17
5.2.60.0070.0409.13
5.2.50.0070.0339.10
5.2.40.0070.0279.07
5.2.30.0080.0279.04
5.2.20.0040.0309.04
5.2.10.0060.0338.94
5.2.00.0100.0378.80
5.1.60.0060.0308.09
5.1.50.0060.0318.09
5.1.40.0050.0518.06
5.1.30.0020.0318.41
5.1.20.0070.0338.44
5.1.10.0070.0358.17
5.1.00.0040.0298.17
5.0.50.0080.0226.64
5.0.40.0130.0516.50
5.0.30.0040.0526.32
5.0.20.0030.0216.28
5.0.10.0040.0186.26
5.0.00.0040.0296.25
4.4.90.0030.0154.78
4.4.80.0010.0174.75
4.4.70.0010.0174.76
4.4.60.0030.0154.76
4.4.50.0030.0204.77
4.4.40.0010.0274.71
4.4.30.0040.0154.76
4.4.20.0040.0154.84
4.4.10.0020.0164.85
4.4.00.0030.0244.75
4.3.110.0040.0144.66
4.3.100.0000.0184.66
4.3.90.0030.0154.63
4.3.80.0020.0264.58
4.3.70.0040.0144.63
4.3.60.0040.0144.63
4.3.50.0010.0194.63
4.3.40.0030.0314.54
4.3.30.0040.0183.30
4.3.20.0010.0203.28
4.3.10.0030.0163.25
4.3.00.0000.0237.54

preferences:
47.32 ms | 401 KiB | 5 Q