3v4l.org

run code in 300+ PHP versions simultaneously
<?php function encode($str) { return preg_replace('/(.)\1*/', function($match) { return strlen($match[1]) . $match[2]; }, $str); } function decode($str) { return preg_replace('/(\d+)(\D)/', function($match) { return str_repeat($match[2], $match[1]); }, $str); } echo encode('WWWWWWWWWWWWBWWWWWWWWWWWWBBBWWWWWWWWWWWWWWWWWWWWWWWWBWWWWWWWWWWWWWW'), "\n"; echo decode('12W1B12W3B24W1B14W'), "\n";

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)
8.3.60.0090.01218.31
8.3.50.0090.00921.08
8.3.40.0070.00718.79
8.3.30.0170.00020.34
8.3.20.0040.00420.18
8.3.10.0040.00422.08
8.3.00.0000.00822.46
8.2.180.0060.00918.54
8.2.170.0000.01522.96
8.2.160.0100.00322.13
8.2.150.0120.00324.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0070.00020.79
8.2.110.0080.00320.53
8.2.100.0040.00817.91
8.2.90.0050.00219.05
8.2.80.0040.00419.39
8.2.70.0000.00817.63
8.2.60.0040.00818.02
8.2.50.0060.00319.36
8.2.40.0080.00018.09
8.2.30.0000.00719.45
8.2.20.0040.00417.61
8.2.10.0040.00417.81
8.2.00.0000.00817.69
8.1.280.0110.00725.92
8.1.270.0050.00323.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.45
8.1.230.0080.00320.84
8.1.220.0030.00618.77
8.1.210.0040.00418.85
8.1.200.0030.00617.23
8.1.190.0080.00017.41
8.1.180.0080.00018.10
8.1.170.0000.00818.68
8.1.160.0030.00718.84
8.1.150.0030.00518.59
8.1.140.0040.00417.37
8.1.130.0000.00817.70
8.1.120.0000.00717.43
8.1.110.0070.00017.46
8.1.100.0000.00817.30
8.1.90.0030.00417.45
8.1.80.0000.00817.35
8.1.70.0070.00017.30
8.1.60.0000.00917.42
8.1.50.0030.00517.48
8.1.40.0070.00317.47
8.1.30.0030.00617.57
8.1.20.0040.00417.46
8.1.10.0040.00417.56
8.1.00.0060.00317.45
8.0.300.0000.00719.83
8.0.290.0000.00717.05
8.0.280.0070.00018.43
8.0.270.0000.00717.13
8.0.260.0070.00016.84
8.0.250.0040.00417.00
8.0.240.0040.00417.00
8.0.230.0030.00316.86
8.0.220.0030.00316.90
8.0.210.0000.00716.91
8.0.200.0000.00617.00
8.0.190.0000.00817.04
8.0.180.0030.00317.00
8.0.170.0000.00816.89
8.0.160.0030.00516.87
8.0.150.0070.00016.83
8.0.140.0060.00316.82
8.0.130.0050.00013.39
8.0.120.0050.00317.00
8.0.110.0070.00016.97
8.0.100.0000.00716.82
8.0.90.0040.00417.05
8.0.80.0040.01217.02
8.0.70.0000.00716.88
8.0.60.0000.00816.99
8.0.50.0050.00216.84
8.0.30.0080.01117.13
8.0.20.0070.01717.41
8.0.10.0040.00416.89
8.0.00.0120.01016.71
7.4.330.0060.00016.69
7.4.320.0030.00316.52
7.4.300.0080.00016.50
7.4.290.0060.00016.47
7.4.280.0030.00316.45
7.4.270.0070.00016.43
7.4.260.0000.00513.24
7.4.250.0020.00516.52
7.4.240.0030.00416.53
7.4.230.0030.00316.57
7.4.220.0030.01316.45
7.4.210.0070.00816.52
7.4.200.0030.00316.41
7.4.190.0000.00716.55
7.4.160.0120.00416.62
7.4.150.0150.00317.40
7.4.140.0060.01117.86
7.4.130.0070.00916.64
7.4.120.0090.00916.61
7.4.110.0100.00616.49
7.4.100.0140.00416.57
7.4.90.0100.00716.37
7.4.80.0160.00619.39
7.4.70.0060.01016.51
7.4.60.0090.00616.39
7.4.50.0050.00316.45
7.4.40.0050.00822.77
7.4.30.0130.00216.48
7.4.00.0080.00815.05
7.3.330.0000.00613.29
7.3.320.0060.00013.34
7.3.310.0070.00016.34
7.3.300.0000.00716.30
7.3.290.0060.01016.31
7.3.280.0070.00816.29
7.3.270.0100.00717.40
7.3.260.0070.01716.43
7.3.250.0070.01016.36
7.3.240.0030.01316.29
7.3.230.0090.00916.54
7.3.210.0070.01116.47
7.3.200.0100.00719.39
7.3.190.0080.00816.51
7.3.180.0030.01316.32
7.3.170.0100.00716.39
7.3.160.0050.01016.32
7.3.120.0120.00514.88
7.3.110.0030.01514.81
7.3.100.0070.00714.59
7.3.90.0060.00914.91
7.3.80.0100.00614.79
7.3.70.0120.00314.80
7.3.60.0130.00314.84
7.3.50.0120.00314.63
7.3.40.0120.00314.66
7.3.30.0070.00714.54
7.3.20.0000.01416.56
7.3.10.0050.00516.60
7.3.00.0030.01016.61
7.2.330.0100.00716.56
7.2.320.0070.01416.66
7.2.310.0060.01616.49
7.2.300.0060.01316.66
7.2.290.0040.01616.65
7.2.250.0150.00415.19
7.2.240.0030.01614.85
7.2.230.0030.01415.06
7.2.220.0060.01215.14
7.2.210.0030.01015.12
7.2.200.0000.01814.70
7.2.190.0100.00314.93
7.2.180.0030.01214.71
7.2.170.0000.01214.95
7.2.60.0090.00316.71
7.2.00.0040.00818.81
7.1.330.0030.01015.89
7.1.320.0000.01115.39
7.1.310.0080.00415.67
7.1.300.0000.00915.74
7.1.290.0040.01115.76
7.1.280.0130.00015.82
7.1.270.0000.01215.73
7.1.260.0030.01215.78
7.1.200.0070.00715.90
7.1.100.0060.00617.89
7.1.70.0000.00717.26
7.1.60.0080.01119.17
7.1.50.0040.01417.03
7.1.00.0000.07322.54
7.0.200.0000.00716.77
7.0.140.0100.06722.00
7.0.110.0000.06721.76
7.0.100.0000.04321.77
7.0.90.0030.03721.68
7.0.80.0000.04021.76
7.0.70.0000.04021.78
7.0.60.0000.04021.68
7.0.50.0000.04022.01
7.0.40.0070.03719.91
7.0.30.0100.03719.99
7.0.20.0070.07020.10
7.0.10.0000.08319.98
7.0.00.0000.08720.13
5.6.280.0000.10021.13
5.6.260.0000.04020.65
5.6.250.0070.04320.61
5.6.240.0030.04020.63
5.6.230.0030.04020.62
5.6.220.0030.05320.63
5.6.210.0030.05020.60
5.6.200.0030.04021.16
5.6.190.0030.06021.10
5.6.180.0070.07020.91
5.6.170.0000.09021.24
5.6.160.0070.07321.15
5.6.150.0100.07020.89
5.6.140.0030.07321.10
5.6.130.0030.08321.18
5.6.120.0030.07020.90
5.6.110.0030.08021.04
5.6.100.0000.08020.91
5.6.90.0100.05021.08
5.6.80.0030.08020.40
5.6.70.0030.07720.48
5.6.60.0070.06320.35
5.6.50.0030.07320.37
5.6.40.0000.08320.30
5.6.30.0100.07320.45
5.6.20.0070.07720.24
5.6.10.0030.07720.45
5.6.00.0070.07720.38
5.5.380.0130.02320.48
5.5.370.0000.04020.32
5.5.360.0000.04320.41
5.5.350.0070.07320.34
5.5.340.0000.04020.86
5.5.330.0030.04020.80
5.5.320.0070.03320.83
5.5.310.0030.04720.91
5.5.300.0100.08020.99
5.5.290.0100.08020.87
5.5.280.0030.08320.66
5.5.270.0000.08720.66
5.5.260.0070.08020.94
5.5.250.0130.08020.65
5.5.240.0000.05320.37
5.5.230.0100.07720.15
5.5.220.0030.08020.06
5.5.210.0030.06020.24
5.5.200.0070.08020.22
5.5.190.0070.08020.32
5.5.180.0070.07720.17
5.5.160.0070.07720.09
5.5.150.0070.08320.30
5.5.140.0000.08020.34
5.5.130.0100.07020.35
5.5.120.0070.07720.05
5.5.110.0070.06720.32
5.5.100.0070.07720.11
5.5.90.0070.07320.13
5.5.80.0100.08020.00
5.5.70.0030.06319.97
5.5.60.0000.06319.96
5.5.50.0070.07320.15
5.5.40.0000.08019.93
5.5.30.0030.08019.94
5.5.20.0070.07320.11
5.5.10.0100.07719.96
5.5.00.0100.07720.16
5.4.450.0030.07319.56
5.4.440.0000.07319.57
5.4.430.0100.06719.34
5.4.420.0100.07019.46
5.4.410.0100.07319.18
5.4.400.0100.07319.02
5.4.390.0070.07319.01
5.4.380.0070.07719.10
5.4.370.0000.06719.23
5.4.360.0000.08019.01
5.4.350.0000.06718.91
5.4.340.0030.04319.18
5.4.320.0000.08019.27
5.4.310.0030.07319.02
5.4.300.0070.06719.18
5.4.290.0000.07319.22
5.4.280.0100.07019.08
5.4.270.0070.06018.98
5.4.260.0070.07319.23
5.4.250.0000.08019.01
5.4.240.0070.06719.00
5.4.230.0070.04719.23
5.4.220.0070.07318.98
5.4.210.0000.08319.00
5.4.200.0000.05018.98
5.4.190.0030.07319.22
5.4.180.0070.07019.16
5.4.170.0070.07319.13
5.4.160.0030.07019.29
5.4.150.0070.07718.97
5.4.140.0100.07016.44
5.4.130.0130.03716.53
5.4.120.0070.07016.38
5.4.110.0000.07716.64
5.4.100.0070.06716.62
5.4.90.0130.06016.52
5.4.80.0030.07716.60
5.4.70.0070.06716.67
5.4.60.0000.07316.45
5.4.50.0070.04316.51
5.4.40.0030.07316.53
5.4.30.0000.05016.52
5.4.20.0000.06316.55
5.4.10.0000.07316.39
5.4.00.0030.06015.73
5.3.290.0070.07014.66
5.3.280.0070.07714.59
5.3.270.0070.07314.59
5.3.260.0030.07314.74
5.3.250.0000.05014.47
5.3.240.0030.07314.47
5.3.230.0030.07314.64
5.3.220.0030.07714.68
5.3.210.0100.07014.59
5.3.200.0000.07714.53
5.3.190.0000.07314.58
5.3.180.0000.08014.80
5.3.170.0070.07014.53
5.3.160.0030.04014.59
5.3.150.0100.07014.58
5.3.140.0100.06314.64
5.3.130.0070.07014.57
5.3.120.0030.06714.79
5.3.110.0030.07714.58
5.3.100.0030.05014.07
5.3.90.0030.07014.03
5.3.80.0000.07314.10
5.3.70.0000.06014.07
5.3.60.0070.07014.25
5.3.50.0000.07313.98
5.3.40.0030.07013.95
5.3.30.0030.07313.78
5.3.20.0070.06713.71
5.3.10.0030.06713.81
5.3.00.0030.06713.65
5.2.170.0000.04713.00
5.2.160.0000.06313.00
5.2.150.0000.06313.00
5.2.140.0030.06013.00
5.2.130.0030.03713.00
5.2.120.0100.04713.00
5.2.110.0030.05713.00
5.2.100.0000.06013.00
5.2.90.0030.05713.00
5.2.80.0000.06013.00
5.2.70.0030.05313.00
5.2.60.0030.06013.00
5.2.50.0100.04713.00
5.2.40.0030.05713.00
5.2.30.0030.06313.00
5.2.20.0030.03313.00
5.2.10.0030.05713.00
5.2.00.0000.05713.00
5.1.60.0030.05313.00
5.1.50.0000.05013.00
5.1.40.0070.04713.00
5.1.30.0000.03313.00
5.1.20.0000.05713.00
5.1.10.0070.05013.00
5.1.00.0030.05313.00
5.0.50.0030.04013.00
5.0.40.0000.04313.00
5.0.30.0030.05713.00
5.0.20.0070.04013.00
5.0.10.0030.04013.00
5.0.00.0030.06013.00
4.4.90.0030.03013.00
4.4.80.0030.03013.00
4.4.70.0000.03013.00
4.4.60.0030.02013.00
4.4.50.0030.02313.00
4.4.40.0000.04313.00
4.4.30.0000.03713.00
4.4.20.0000.04013.00
4.4.10.0030.03313.00
4.4.00.0030.03713.00
4.3.110.0030.03013.00
4.3.100.0000.03313.00
4.3.90.0070.02713.00
4.3.80.0000.05013.00
4.3.70.0000.03313.00
4.3.60.0000.03313.00
4.3.50.0000.03313.00
4.3.40.0030.03713.00
4.3.30.0000.03713.00
4.3.20.0030.02713.00
4.3.10.0030.03313.00
4.3.00.0030.03313.00

preferences:
49.6 ms | 401 KiB | 5 Q