3v4l.org

run code in 300+ PHP versions simultaneously
<?php $buffer = -1; function callback($output) { global $buffer; $buffer = $output; return 'R'; } ob_start('callback'); echo 'hello'; $a = ob_get_contents(); $b = ob_get_clean(); echo $a; echo $b; var_dump($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)
8.3.60.0070.01116.38
8.3.50.0090.00722.05
8.3.40.0130.00718.71
8.3.30.0040.01118.88
8.3.20.0000.00820.07
8.3.10.0060.00323.61
8.3.00.0040.00419.38
8.2.180.0140.00716.38
8.2.170.0110.01122.96
8.2.160.0130.00020.57
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0130.00720.88
8.2.110.0030.00722.08
8.2.100.0060.00617.72
8.2.90.0040.00419.23
8.2.80.0000.00817.97
8.2.70.0060.00317.38
8.2.60.0050.00318.03
8.2.50.0000.00818.07
8.2.40.0000.00919.82
8.2.30.0000.00819.86
8.2.20.0040.00417.57
8.2.10.0030.00518.21
8.2.00.0080.00017.76
8.1.280.0110.00425.92
8.1.270.0060.00324.02
8.1.260.0090.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.96
8.1.230.0100.00019.22
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0040.00417.22
8.1.180.0080.00018.10
8.1.170.0060.00318.50
8.1.160.0040.00421.96
8.1.150.0070.00318.57
8.1.140.0040.00417.31
8.1.130.0000.00717.74
8.1.120.0040.00417.45
8.1.110.0030.00517.45
8.1.100.0030.00317.33
8.1.90.0000.00817.41
8.1.80.0000.00717.42
8.1.70.0000.00817.41
8.1.60.0000.00817.43
8.1.50.0080.00017.33
8.1.40.0070.00017.46
8.1.30.0030.00517.60
8.1.20.0070.00017.52
8.1.10.0030.00617.55
8.1.00.0050.00217.30
8.0.300.0060.00320.79
8.0.290.0050.00217.18
8.0.280.0080.00018.48
8.0.270.0000.00717.25
8.0.260.0030.00317.26
8.0.250.0000.00816.94
8.0.240.0030.00316.96
8.0.230.0040.00416.94
8.0.220.0040.00416.86
8.0.210.0000.00716.75
8.0.200.0030.00316.87
8.0.190.0080.00016.89
8.0.180.0000.00716.87
8.0.170.0040.00416.75
8.0.160.0000.00716.71
8.0.150.0000.00716.83
8.0.140.0030.00316.68
8.0.130.0030.00313.32
8.0.120.0000.00816.83
8.0.110.0050.00316.76
8.0.100.0040.00416.63
8.0.90.0040.00416.76
8.0.80.0090.00616.74
8.0.70.0000.00816.77
8.0.60.0040.00416.85
8.0.50.0070.00016.66
8.0.30.0130.00817.18
8.0.20.0080.01217.40
8.0.10.0040.00417.00
8.0.00.0120.00916.62
7.4.330.0050.00015.07
7.4.320.0000.00716.43
7.4.300.0000.00616.45
7.4.290.0050.00316.50
7.4.280.0000.00716.41
7.4.270.0040.00416.31
7.4.260.0000.00716.38
7.4.250.0080.00016.51
7.4.240.0030.00416.41
7.4.230.0000.00616.53
7.4.220.0070.01116.39
7.4.210.0050.01016.54
7.4.200.0020.00516.53
7.4.190.0000.00716.71
7.4.160.0120.00316.67
7.4.150.0100.00717.40
7.4.140.0130.01017.86
7.4.130.0120.00516.29
7.4.120.0080.01116.44
7.4.110.0170.00016.24
7.4.100.0070.01016.45
7.4.90.0060.01316.50
7.4.80.0110.00819.39
7.4.70.0170.00416.38
7.4.60.0100.00716.14
7.4.50.0040.00416.50
7.4.40.0140.00616.52
7.4.30.0130.00316.66
7.4.00.0120.00414.82
7.3.330.0000.00613.32
7.3.320.0030.00313.31
7.3.310.0000.00816.36
7.3.300.0070.00016.33
7.3.290.0130.00616.30
7.3.280.0090.00716.30
7.3.270.0090.00917.40
7.3.260.0060.01116.57
7.3.250.0180.00416.56
7.3.240.0130.00316.39
7.3.230.0060.01216.39
7.3.210.0110.00816.50
7.3.200.0090.01319.39
7.3.190.0100.01016.42
7.3.180.0030.01316.33
7.3.170.0100.00716.41
7.3.160.0110.00516.43
7.3.120.0030.01314.87
7.3.10.0090.00916.62
7.3.00.0150.00016.69
7.2.330.0110.01416.73
7.2.320.0050.01116.64
7.2.310.0120.00616.57
7.2.300.0030.01316.51
7.2.290.0040.01916.63
7.2.130.0030.00716.90
7.2.120.0090.00016.82
7.2.110.0130.00016.74
7.2.100.0070.01016.85
7.2.90.0060.00616.64
7.2.80.0070.00316.88
7.2.70.0030.01016.99
7.2.60.0060.00816.95
7.2.50.0110.00016.99
7.2.40.0040.01217.01
7.2.30.0000.01316.98
7.2.20.0030.00816.90
7.2.10.0090.00316.88
7.2.00.0030.00716.63
7.1.250.0000.01015.90
7.1.200.0070.00715.73
7.1.70.0050.00316.85
7.1.60.0000.01519.46
7.1.50.0100.01616.81
7.1.00.0000.08022.44
7.0.200.0060.00316.52
7.0.140.0130.06322.18
7.0.110.0070.08719.90
7.0.100.0100.05720.00
7.0.90.0130.07319.88
7.0.80.0130.07019.93
7.0.70.0100.07720.06
7.0.60.0030.08320.02
7.0.50.0130.03320.48
7.0.40.0000.04720.27
7.0.30.0030.04320.28
7.0.20.0070.03720.04
7.0.10.0100.03720.23
7.0.00.0070.04320.20
5.6.280.0070.09321.13
5.6.250.0100.07320.65
5.6.240.0070.08320.72
5.6.230.0100.07320.55
5.6.220.0030.09020.63
5.6.210.0070.07320.65
5.6.200.0070.06721.16
5.6.190.0170.04021.15
5.6.180.0100.04321.03
5.6.170.0100.03321.14
5.6.160.0070.05721.03
5.6.150.0070.05720.95
5.6.140.0070.04021.12
5.6.130.0030.04720.96
5.6.120.0030.05721.04
5.6.110.0030.04021.28
5.6.100.0130.03021.09
5.6.90.0130.03321.27
5.6.80.0070.03720.32
5.6.70.0070.04020.67
5.6.60.0030.05320.50
5.6.50.0070.06320.48
5.6.40.0000.04320.43
5.6.30.0000.04020.50
5.6.20.0030.06720.31
5.6.10.0100.03320.38
5.6.00.0070.04720.29
5.5.380.0130.07320.46
5.5.370.0030.07720.36
5.5.360.0130.08020.47
5.5.350.0100.08020.40
5.5.340.0030.04320.91
5.5.330.0070.05020.82
5.5.320.0070.04720.75
5.5.310.0130.06020.89
5.5.300.0000.04320.87
5.5.290.0070.05320.81
5.5.280.0000.04720.70
5.5.270.0070.04720.98
5.5.260.0070.07720.77
5.5.250.0070.04020.78
5.5.240.0130.05020.29
5.5.230.0000.04320.08
5.5.220.0130.02720.12
5.5.210.0070.07320.28
5.5.200.0030.07320.39
5.5.190.0070.04320.30
5.5.180.0070.03720.09
5.5.160.0070.03720.16
5.5.150.0070.03720.29
5.5.140.0100.03020.30
5.5.130.0000.07320.38
5.5.120.0030.03720.23
5.5.110.0100.03320.16
5.5.100.0100.03320.16
5.5.90.0070.03720.10
5.5.80.0000.04020.23
5.5.70.0030.08020.07
5.5.60.0030.05720.01
5.5.50.0030.04020.15
5.5.40.0130.06320.13
5.5.30.0000.05020.06
5.5.20.0000.04720.03
5.5.10.0070.07720.11
5.5.00.0100.04320.18
5.4.450.0030.04019.64
5.4.440.0030.06319.32
5.4.430.0170.06019.50
5.4.420.0070.07019.48
5.4.410.0030.04019.51
5.4.400.0100.03719.17
5.4.390.0070.04719.02
5.4.380.0070.07019.14
5.4.370.0030.04019.32
5.4.360.0030.04018.95
5.4.350.0070.03318.99
5.4.340.0000.06719.23
5.4.320.0030.04019.34
5.4.310.0000.05019.00
5.4.300.0030.04019.18
5.4.290.0070.03719.03
5.4.280.0070.04018.95
5.4.270.0030.03719.11
5.4.260.0000.04319.22
5.4.250.0070.05719.18
5.4.240.0130.02718.95
5.4.230.0000.04019.14
5.4.220.0070.07319.16
5.4.210.0000.03719.16
5.4.200.0000.04019.00
5.4.190.0100.06718.97
5.4.180.0030.06019.02
5.4.170.0170.07319.08
5.4.160.0100.07319.22
5.4.150.0070.06018.97
5.4.140.0130.06716.36
5.4.130.0170.06316.38
5.4.120.0000.07716.50
5.4.110.0070.06716.32
5.4.100.0030.07316.42
5.4.90.0030.07316.57
5.4.80.0070.07716.30
5.4.70.0130.06016.40
5.4.60.0100.07016.44
5.4.50.0030.07316.52
5.4.40.0130.06716.43
5.4.30.0100.07016.23
5.4.20.0070.04316.48
5.4.10.0070.07016.23
5.4.00.0070.07015.80
5.3.290.0030.05014.89
5.3.280.0000.04014.61
5.3.270.0070.06014.60
5.3.260.0070.07314.69
5.3.250.0070.06714.58
5.3.240.0100.05014.61
5.3.230.0070.08014.61
5.3.220.0030.08714.69
5.3.210.0070.06014.64
5.3.200.0130.07314.52
5.3.190.0030.08014.70
5.3.180.0070.07714.56
5.3.170.0070.07014.56
5.3.160.0070.07714.79
5.3.150.0070.07714.70
5.3.140.0100.07014.55
5.3.130.0100.07014.67
5.3.120.0100.08014.65
5.3.110.0070.07314.54
5.3.100.0070.07314.05
5.3.90.0100.06714.15
5.3.80.0100.03714.25
5.3.70.0100.07714.02
5.3.60.0070.06713.98
5.3.50.0030.07013.80
5.3.40.0030.07713.96
5.3.30.0000.05313.97
5.3.20.0130.06013.54
5.3.10.0000.06013.67
5.3.00.0000.06013.67
5.2.170.0000.04711.28
5.2.160.0030.06311.23
5.2.150.0070.06011.14
5.2.140.0000.05311.13
5.2.130.0000.06711.11
5.2.120.0030.06311.10
5.2.110.0030.06711.07
5.2.100.0100.05711.24
5.2.90.0030.05311.14
5.2.80.0100.05311.17
5.2.70.0030.04311.11
5.2.60.0000.04711.05
5.2.50.0070.05711.00
5.2.40.0000.06711.00
5.2.30.0030.05310.96
5.2.20.0070.05710.92
5.2.10.0030.03310.95
5.2.00.0070.05710.73
5.1.60.0100.0479.97
5.1.50.0130.04310.07
5.1.40.0070.0479.97
5.1.30.0030.05310.44
5.1.20.0070.06010.31
5.1.10.0030.05710.03
5.1.00.0100.02310.22
5.0.50.0070.0438.50
5.0.40.0100.0308.24
5.0.30.0070.0378.20
5.0.20.0100.0378.29
5.0.10.0030.0478.18
5.0.00.0030.0508.15
4.4.90.0000.0338.02
4.4.80.0030.0278.02
4.4.70.0070.0338.02
4.4.60.0070.0338.02
4.4.50.0030.0378.02
4.4.40.0070.0508.02
4.4.30.0030.0338.02
4.4.20.0000.0338.02
4.4.10.0030.0308.02
4.4.00.0030.0538.02
4.3.110.0000.0378.02
4.3.100.0030.0338.02
4.3.90.0070.0138.02
4.3.80.0030.0538.02
4.3.70.0000.0338.02
4.3.60.0000.0378.02
4.3.50.0030.0338.02
4.3.40.0070.0478.02
4.3.30.0000.0378.02
4.3.20.0000.0378.02
4.3.10.0000.0338.02
4.3.00.0000.0378.02

preferences:
46.7 ms | 401 KiB | 5 Q