3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = "a".str_repeat(" ",1024)."b"; $a=preg_replace("/[^-_a-z]/", "", $data); if($a!="ab") echo $data; ?>

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)
8.3.60.0070.01118.43
8.3.50.0060.01121.99
8.3.40.0090.00618.79
8.3.30.0060.00918.79
8.3.20.0040.00418.91
8.3.10.0080.00021.04
8.3.00.0080.00023.54
8.2.180.0090.00916.88
8.2.170.0140.00722.96
8.2.160.0140.00020.38
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0000.00826.16
8.2.120.0090.00919.73
8.2.110.0030.00621.04
8.2.100.0080.00417.91
8.2.90.0030.00519.26
8.2.80.0040.00417.97
8.2.70.0030.00617.75
8.2.60.0040.00417.92
8.2.50.0080.00018.07
8.2.40.0050.00318.22
8.2.30.0050.00319.86
8.2.20.0040.00417.92
8.2.10.0040.00417.87
8.2.00.0070.00017.89
8.1.280.0070.01025.92
8.1.270.0040.00423.99
8.1.260.0110.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.73
8.1.230.0040.00817.64
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0000.01017.48
8.1.190.0050.00517.35
8.1.180.0000.00918.10
8.1.170.0040.00418.77
8.1.160.0040.00418.91
8.1.150.0040.00418.72
8.1.140.0050.00317.63
8.1.130.0040.00417.72
8.1.120.0070.00017.63
8.1.110.0000.00717.58
8.1.100.0040.00417.51
8.1.90.0070.00017.50
8.1.80.0000.00717.64
8.1.70.0030.00317.47
8.1.60.0040.00417.62
8.1.50.0040.00417.62
8.1.40.0000.00717.70
8.1.30.0000.00817.86
8.1.20.0000.00817.78
8.1.10.0030.00517.57
8.1.00.0000.00817.58
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0000.00718.46
8.0.270.0070.00017.18
8.0.260.0000.00718.32
8.0.250.0000.00716.97
8.0.240.0030.00517.15
8.0.230.0030.00317.02
8.0.220.0000.00716.91
8.0.210.0040.00417.02
8.0.200.0040.00417.11
8.0.190.0000.00717.14
8.0.180.0040.00417.07
8.0.170.0030.00516.97
8.0.160.0030.00317.11
8.0.150.0030.00716.95
8.0.140.0030.00717.00
8.0.130.0030.00313.39
8.0.120.0080.00016.98
8.0.110.0100.00016.81
8.0.100.0070.00017.10
8.0.90.0040.00416.91
8.0.80.0040.01417.09
8.0.70.0000.00716.85
8.0.60.0000.00716.82
8.0.50.0050.00316.92
8.0.30.0100.00917.19
8.0.20.0120.00617.44
8.0.10.0040.00417.04
8.0.00.0080.01717.02
7.4.330.0050.00015.05
7.4.320.0000.00716.85
7.4.300.0030.00316.74
7.4.290.0030.00316.60
7.4.280.0110.00016.70
7.4.270.0070.00016.84
7.4.260.0000.00513.41
7.4.250.0060.00316.80
7.4.240.0000.00716.72
7.4.230.0040.00416.74
7.4.220.0030.01416.90
7.4.210.0070.00916.72
7.4.200.0070.00016.61
7.4.190.0080.00016.94
7.4.160.0110.00416.65
7.4.150.0090.00917.40
7.4.140.0070.01417.86
7.4.130.0080.00816.71
7.4.120.0060.01216.63
7.4.110.0100.00716.84
7.4.100.0100.00616.80
7.4.90.0100.00916.78
7.4.80.0120.00919.37
7.4.70.0090.00616.62
7.4.60.0120.00816.77
7.4.50.0000.00916.47
7.4.40.0000.01322.27
7.4.30.0100.01016.75
7.4.00.0040.01115.16
7.3.330.0050.00013.16
7.3.320.0000.00713.14
7.3.310.0000.00816.46
7.3.300.0070.00016.36
7.3.290.0110.00716.38
7.3.280.0080.00816.41
7.3.270.0120.00417.40
7.3.260.0120.00818.24
7.3.250.0110.00616.61
7.3.240.0100.00716.68
7.3.230.0070.01016.46
7.3.210.0070.01016.37
7.3.200.0140.00319.39
7.3.190.0080.00916.78
7.3.180.0100.00616.66
7.3.170.0040.01216.55
7.3.160.0110.00716.40
7.3.120.0070.01014.87
7.2.330.0110.00616.80
7.2.320.0110.00616.57
7.2.310.0110.00616.84
7.2.300.0100.00716.71
7.2.290.0090.00916.88
7.2.00.0070.01019.43
7.1.100.0080.00418.34
7.1.70.0000.00917.27
7.1.60.0110.01419.40
7.1.50.0030.02017.12
7.1.00.0030.07722.45
7.0.200.0050.00316.90
7.0.140.0000.07722.04
7.0.60.0030.04019.79
7.0.50.0030.04017.89
7.0.40.0070.05017.76
7.0.30.0130.07717.70
7.0.20.0030.05017.70
7.0.10.0070.04317.66
7.0.00.0030.07017.86
5.6.280.0130.06320.77
5.6.210.0030.08020.46
5.6.200.0000.04318.13
5.6.190.0070.04018.18
5.6.180.0100.03318.22
5.6.170.0030.07718.21
5.6.160.0070.08318.17
5.6.150.0100.07318.22
5.6.140.0030.06718.11
5.6.130.0100.08018.22
5.6.120.0000.04718.14
5.6.110.0000.05318.08
5.6.100.0100.06718.11
5.6.90.0070.08718.10
5.6.80.0100.04717.52
5.6.70.0100.07717.59
5.6.60.0170.05317.57
5.6.50.0070.06017.50
5.6.40.0000.08017.58
5.6.30.0070.07317.58
5.6.20.0100.07317.56
5.6.10.0100.07017.46
5.6.00.0130.06317.52
5.5.350.0130.04720.48
5.5.340.0030.04017.98
5.5.330.0070.06717.97
5.5.320.0000.08318.02
5.5.310.0030.07317.96
5.5.300.0170.05717.98
5.5.290.0100.05317.90
5.5.280.0070.09017.92
5.5.270.0100.05717.97
5.5.260.0030.04317.88
5.5.250.0100.07317.72
5.5.240.0070.07317.32
5.5.230.0070.07717.35
5.5.220.0070.07317.29
5.5.210.0030.08717.27
5.5.200.0170.06717.34
5.5.190.0030.07317.33
5.5.180.0230.07017.32
5.5.160.0070.05017.37
5.5.150.0070.07317.22
5.5.140.0230.06017.35
5.5.130.0000.05017.22
5.5.120.0070.04717.26
5.5.110.0070.07717.24
5.5.100.0000.05017.26
5.5.90.0030.08017.16
5.5.80.0100.07317.23
5.5.70.0030.05717.14
5.5.60.0100.07017.20
5.5.50.0030.08017.12
5.5.40.0070.04017.26
5.5.30.0100.07317.24
5.5.20.0030.03717.22
5.5.10.0030.07317.24
5.5.00.0030.07717.26
5.4.450.0170.07019.32
5.4.440.0100.04719.29
5.4.430.0030.05319.30
5.4.420.0070.07719.37
5.4.410.0000.05719.18
5.4.400.0070.04018.89
5.4.390.0030.08019.03
5.4.380.0030.05719.01
5.4.370.0030.08019.21
5.4.360.0100.07719.04
5.4.350.0170.06319.13
5.4.340.0130.07719.11
5.4.320.0030.04019.09
5.4.310.0100.07319.11
5.4.300.0030.07019.20
5.4.290.0130.05318.82
5.4.280.0070.03719.14
5.4.270.0100.04719.12
5.4.260.0000.06319.09
5.4.250.0100.07319.00
5.4.240.0030.04319.20
5.4.230.0130.03718.98
5.4.220.0070.05019.03
5.4.210.0070.06018.97
5.4.200.0030.04718.98
5.4.190.0070.03718.98
5.4.180.0100.05319.06
5.4.170.0070.03719.00
5.4.160.0100.06318.95
5.4.150.0070.07719.19
5.4.140.0030.06316.18
5.4.130.0100.07316.41
5.4.120.0070.05016.47
5.4.110.0000.05016.27
5.4.100.0070.04316.28
5.4.90.0130.06316.41
5.4.80.0030.07716.24
5.4.70.0030.07316.24
5.4.60.0100.06716.30
5.4.50.0070.04716.50
5.4.40.0070.04016.26
5.4.30.0070.03316.39
5.4.20.0070.06016.34
5.4.10.0100.06316.34
5.4.00.0070.07315.77
5.3.290.0100.06314.61
5.3.280.0170.07314.55
5.3.270.0070.07714.46
5.3.260.0070.06714.58
5.3.250.0100.06314.43
5.3.240.0000.05314.51
5.3.230.0030.05314.53
5.3.220.0030.07714.40
5.3.210.0070.04014.42
5.3.200.0130.07014.49
5.3.190.0030.05314.48
5.3.180.0130.06714.50
5.3.170.0130.07014.50
5.3.160.0000.08014.52
5.3.150.0000.06314.54
5.3.140.0200.06014.50
5.3.130.0070.06314.49
5.3.120.0070.08014.50
5.3.110.0070.06314.32
5.3.100.0070.07314.00
5.3.90.0070.07313.89
5.3.80.0000.07013.95
5.3.70.0100.04014.09
5.3.60.0170.06313.93
5.3.50.0030.07313.88
5.3.40.0030.07713.88
5.3.30.0100.06313.82
5.3.20.0130.07013.77
5.3.10.0030.07313.44
5.3.00.0070.04013.39
5.2.170.0030.07011.09
5.2.160.0000.06711.14
5.2.150.0000.04011.14
5.2.140.0030.03711.08
5.2.130.0030.04011.01
5.2.120.0070.05011.08
5.2.110.0070.06311.08
5.2.100.0130.05311.06
5.2.90.0100.05711.06
5.2.80.0000.06011.06
5.2.70.0030.03711.00
5.2.60.0100.06311.00
5.2.50.0100.05010.99
5.2.40.0070.05010.89
5.2.30.0030.06710.96
5.2.20.0000.03310.96
5.2.10.0030.05010.78
5.2.00.0000.06310.69
5.1.60.0130.0509.93
5.1.50.0030.05710.00
5.1.40.0000.0379.96
5.1.30.0030.05710.35
5.1.20.0000.06010.35
5.1.10.0100.03710.09
5.1.00.0000.05010.03
5.0.50.0070.0378.51
5.0.40.0070.0378.38
5.0.30.0100.0608.20
5.0.20.0030.0338.18
5.0.10.0070.0378.37
5.0.00.0100.0408.20
4.4.90.0030.0307.65
4.4.80.0030.0377.65
4.4.70.0000.0377.65
4.4.60.0000.0177.65
4.4.50.0000.0207.65
4.4.40.0000.0437.65
4.4.30.0070.0237.65
4.4.20.0000.0377.65
4.4.10.0030.0237.65
4.4.00.0000.0577.65
4.3.110.0000.0237.65
4.3.100.0030.0207.65
4.3.90.0000.0337.65
4.3.80.0000.0377.65
4.3.70.0000.0177.65
4.3.60.0000.0307.65
4.3.50.0070.0337.65
4.3.40.0000.0577.65
4.3.30.0000.0337.65
4.3.20.0000.0307.65
4.3.10.0030.0207.65
4.3.00.0030.0377.65

preferences:
99.89 ms | 401 KiB | 5 Q