3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo count_chars( "aaaaaaaaaaaaaaaaaaaaaaa", 3);

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)
8.3.60.0100.00716.63
8.3.50.0070.00922.76
8.3.40.0070.00718.70
8.3.30.0110.00718.84
8.3.20.0050.00220.30
8.3.10.0050.00223.61
8.3.00.0000.00819.13
8.2.180.0060.00916.32
8.2.170.0040.01122.96
8.2.160.0060.00620.39
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00826.16
8.2.120.0070.00021.09
8.2.110.0070.00322.26
8.2.100.0030.00919.43
8.2.90.0000.00719.22
8.2.80.0060.00317.97
8.2.70.0000.00817.38
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0050.00218.09
8.2.30.0040.00418.04
8.2.20.0040.00417.63
8.2.10.0050.00218.06
8.2.00.0040.00417.45
8.1.280.0110.00425.92
8.1.270.0000.00823.97
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.94
8.1.230.0090.00318.97
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0000.00917.23
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0040.00418.52
8.1.160.0040.00421.96
8.1.150.0000.00718.79
8.1.140.0000.00717.36
8.1.130.0030.00317.70
8.1.120.0050.00217.24
8.1.110.0000.00817.30
8.1.100.0040.00417.19
8.1.90.0000.00717.30
8.1.80.0040.00417.18
8.1.70.0030.00517.20
8.1.60.0000.00817.44
8.1.50.0000.00817.30
8.1.40.0080.00017.32
8.1.30.0080.00017.51
8.1.20.0030.00517.50
8.1.10.0000.00717.39
8.1.00.0000.00817.38
8.0.300.0000.00718.77
8.0.290.0000.00816.63
8.0.280.0030.00318.32
8.0.270.0050.00317.18
8.0.260.0030.00317.07
8.0.250.0030.00316.84
8.0.240.0000.00816.87
8.0.230.0030.00316.80
8.0.220.0070.00016.78
8.0.210.0030.00316.64
8.0.200.0000.00616.82
8.0.190.0090.00016.82
8.0.180.0040.00416.74
8.0.170.0080.00016.75
8.0.160.0040.00716.75
8.0.150.0000.00716.69
8.0.140.0030.00316.75
8.0.130.0050.00013.20
8.0.120.0050.00216.71
8.0.110.0000.00716.64
8.0.100.0070.00016.77
8.0.90.0000.00716.79
8.0.80.0110.00416.65
8.0.70.0000.00816.62
8.0.60.0040.00416.76
8.0.50.0040.00416.80
8.0.30.0170.00517.12
8.0.20.0090.00917.40
8.0.10.0030.00416.89
8.0.00.0110.00916.54
7.4.330.0020.00215.07
7.4.320.0030.00316.46
7.4.300.0000.00616.46
7.4.290.0070.00016.46
7.4.280.0070.00016.48
7.4.270.0080.00016.31
7.4.260.0000.00716.27
7.4.250.0040.00416.46
7.4.240.0050.00216.35
7.4.230.0000.00716.22
7.4.220.0150.00916.40
7.4.210.0100.00316.50
7.4.200.0000.00716.53
7.4.160.0090.00616.35
7.4.150.0170.00317.40
7.4.140.0080.01117.86
7.4.130.0120.00516.36
7.4.120.0070.00916.40
7.4.110.0140.00316.29
7.4.100.0060.01116.36
7.4.90.0180.00016.38
7.4.80.0120.00819.39
7.4.70.0110.00816.45
7.4.60.0090.00716.55
7.4.50.0000.00816.44
7.4.40.0130.00316.45
7.4.30.0130.00616.58
7.4.00.0060.00914.74
7.3.330.0030.00312.96
7.3.320.0000.00613.05
7.3.310.0030.00316.17
7.3.300.0030.00316.11
7.3.290.0030.01116.19
7.3.280.0140.00216.18
7.3.270.0080.00817.40
7.3.260.0100.00716.06
7.3.250.0120.00616.29
7.3.240.0130.00316.34
7.3.230.0060.01516.39
7.3.210.0070.01016.11
7.3.200.0050.01519.39
7.3.190.0130.00916.16
7.3.180.0070.01116.02
7.3.170.0080.00716.39
7.3.160.0090.00816.40
7.3.10.0030.00916.58
7.3.00.0060.00616.55
7.2.330.0120.00816.23
7.2.320.0120.00916.52
7.2.310.0100.00716.54
7.2.300.0030.01416.59
7.2.290.0080.00816.29
7.2.130.0090.00316.85
7.2.120.0030.01316.89
7.2.110.0040.01216.61
7.2.100.0120.00316.65
7.2.90.0070.00716.90
7.2.80.0070.00716.77
7.2.70.0060.00316.60
7.2.60.0060.00916.43
7.2.50.0080.00316.97
7.2.40.0140.00016.78
7.2.30.0070.00716.77
7.2.20.0100.00316.80
7.2.10.0060.00616.38
7.2.00.0150.00717.78
7.1.250.0030.00615.68
7.1.100.0030.01217.80
7.1.70.0000.01117.01
7.1.60.0120.00919.40
7.1.50.0040.01316.69
7.1.00.0030.07722.43
7.0.200.0000.00816.75
7.0.140.0070.07022.07
7.0.110.0100.03319.81
7.0.100.0130.07319.89
7.0.90.0030.06719.94
7.0.80.0170.04320.02
7.0.70.0070.07319.92
7.0.60.0070.06720.02
7.0.50.0100.03719.94
7.0.40.0070.06719.67
7.0.30.0200.04319.87
7.0.20.0030.04319.74
7.0.10.0070.08719.71
7.0.00.0030.07019.78
5.6.280.0070.07021.07
5.6.260.0070.03720.66
5.6.250.0130.07320.59
5.6.240.0070.08020.70
5.6.230.0100.08020.55
5.6.220.0070.08320.64
5.6.210.0070.05020.55
5.6.200.0100.04020.46
5.6.190.0030.08320.46
5.6.180.0000.05020.70
5.6.170.0100.08320.70
5.6.160.0070.06020.69
5.6.150.0030.08320.61
5.6.140.0030.08720.56
5.6.130.0100.04020.46
5.6.120.0070.08720.69
5.6.110.0070.06320.54
5.6.100.0070.08020.62
5.6.90.0130.07020.60
5.6.80.0030.04319.93
5.6.70.0070.06320.21
5.6.60.0000.05720.07
5.6.50.0200.05020.01
5.6.40.0070.05019.96
5.6.30.0030.07719.94
5.6.20.0070.03719.98
5.6.10.0070.03719.90
5.6.00.0030.04020.05
5.5.380.0030.03717.56
5.5.370.0030.07317.64
5.5.360.0130.06317.51
5.5.350.0030.07717.47
5.5.340.0030.05018.16
5.5.330.0070.06318.10
5.5.320.0070.04317.86
5.5.310.0070.07717.84
5.5.300.0200.06018.10
5.5.290.0070.07717.89
5.5.280.0070.07717.86
5.5.270.0070.06018.15
5.5.260.0070.04717.84
5.5.250.0100.07317.66
5.5.240.0170.03717.25
5.5.230.0030.04717.50
5.5.220.0100.04317.54
5.5.210.0070.08317.64
5.5.200.0130.06717.12
5.5.190.0030.05717.34
5.5.180.0070.03717.37
5.5.160.0000.04317.24
5.5.150.0000.04017.33
5.5.140.0100.03317.44
5.5.130.0100.07317.50
5.5.120.0070.06317.60
5.5.110.0030.06317.47
5.5.100.0030.03717.27
5.5.90.0030.08017.39
5.5.80.0130.06717.01
5.5.70.0000.03717.34
5.5.60.0070.03317.36
5.5.50.0070.05317.27
5.5.40.0000.03717.11
5.5.30.0100.05317.36
5.5.20.0000.05317.33
5.5.10.0070.06017.37
5.5.00.0030.06317.33
5.4.450.0070.07019.60
5.4.440.0100.04019.44
5.4.430.0070.06019.42
5.4.420.0030.07319.27
5.4.410.0100.07019.31
5.4.400.0070.06719.12
5.4.390.0030.06319.27
5.4.380.0070.07018.93
5.4.370.0070.05719.29
5.4.360.0070.06719.13
5.4.350.0130.06719.12
5.4.340.0000.04319.12
5.4.320.0070.06318.95
5.4.310.0070.05019.11
5.4.300.0030.06019.12
5.4.290.0170.04319.00
5.4.280.0100.06719.00
5.4.270.0030.04018.95
5.4.260.0000.06719.11
5.4.250.0030.03719.15
5.4.240.0030.05019.02
5.4.230.0100.06019.02
5.4.220.0030.05318.92
5.4.210.0070.07019.16
5.4.200.0100.02718.94
5.4.190.0070.07019.02
5.4.180.0100.06319.11
5.4.170.0000.03718.91
5.4.160.0030.05018.98
5.4.150.0000.06019.14
5.4.140.0030.07316.34
5.4.130.0170.06016.47
5.4.120.0070.04316.48
5.4.110.0070.04316.54
5.4.100.0030.05716.38
5.4.90.0000.04016.50
5.4.80.0000.06316.39
5.4.70.0030.05716.27
5.4.60.0000.06016.35
5.4.50.0100.06316.25
5.4.40.0000.04016.43
5.4.30.0070.03316.49
5.4.20.0030.07016.37
5.4.10.0100.05716.27
5.4.00.0030.04015.97
5.3.290.0070.03714.56
5.3.280.0070.03714.54
5.3.270.0000.04014.53
5.3.260.0100.07014.61
5.3.250.0100.03014.59
5.3.240.0100.06314.39
5.3.230.0030.05314.49
5.3.220.0000.04314.57
5.3.210.0000.05014.44
5.3.200.0030.04714.40
5.3.190.0100.07014.66
5.3.180.0100.06014.46
5.3.170.0100.07714.38
5.3.160.0030.03314.57
5.3.150.0070.07314.48
5.3.140.0100.04714.40
5.3.130.0000.07314.65
5.3.120.0130.03714.46
5.3.110.0000.07314.39
5.3.100.0070.05713.92
5.3.90.0070.03713.94
5.3.80.0030.06714.02
5.3.70.0070.04013.88
5.3.60.0030.05314.02
5.3.50.0170.05713.86
5.3.40.0070.04713.84
5.3.30.0100.06013.84
5.3.20.0130.07713.51
5.3.10.0030.07713.51
5.3.00.0070.07013.47
5.2.170.0000.04312.07
5.2.160.0070.03012.07
5.2.150.0000.04312.07
5.2.140.0030.05712.07
5.2.130.0100.05012.07
5.2.120.0030.05712.07
5.2.110.0070.05712.07
5.2.100.0030.05312.07
5.2.90.0070.06012.07
5.2.80.0000.06312.07
5.2.70.0030.03712.07
5.2.60.0030.03712.07
5.2.50.0030.03312.07
5.2.40.0070.05312.07
5.2.30.0100.06012.07
5.2.20.0070.06012.07
5.2.10.0030.03012.07
5.2.00.0000.04012.07
5.1.60.0070.02312.07
5.1.50.0030.05712.07
5.1.40.0000.02712.07
5.1.30.0070.04012.07
5.1.20.0000.03012.07
5.1.10.0100.03312.07
5.1.00.0100.05012.07
5.0.50.0030.04312.07
5.0.40.0000.02312.07
5.0.30.0000.06712.07
5.0.20.0030.03712.07
5.0.10.0000.04712.07
5.0.00.0030.06312.07
4.4.90.0000.02012.07
4.4.80.0000.04012.07
4.4.70.0030.03312.07
4.4.60.0030.01712.07
4.4.50.0070.01312.07
4.4.40.0000.02712.07
4.4.30.0030.03012.07
4.4.20.0030.02712.07
4.4.10.0030.02012.07
4.4.00.0000.05012.07
4.3.110.0000.01712.07
4.3.100.0100.02712.07
4.3.90.0070.02312.07
4.3.80.0000.04012.07
4.3.70.0000.03712.07
4.3.60.0070.01312.07
4.3.50.0030.02012.07
4.3.40.0000.04712.07
4.3.30.0000.02012.07
4.3.20.0000.01712.07
4.3.10.0030.02012.07
4.3.00.0130.01312.07

preferences:
40.88 ms | 401 KiB | 5 Q