3v4l.org

run code in 300+ PHP versions simultaneously
<?php $limit = 1000000000; $string = 'a'; for ( $i = 0; $i <= $limit; $i++ ) { $string .= 'a'; } echo strlen($string)."\n"; $str2=preg_replace('#(?<name>.)*#', '', $string); echo 'done';

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)
8.3.60.0800.80050.06
8.3.50.0750.79750.28
8.3.40.0270.38636.20
8.3.30.0330.39736.19
8.3.20.0200.20337.94
8.3.10.0130.20039.67
8.3.00.0130.20235.72
8.2.180.0870.79250.10
8.2.170.0470.38136.25
8.2.160.0470.37537.98
8.2.150.0330.18436.11
8.2.140.0230.18038.21
8.2.130.0200.19535.80
8.2.120.0360.18234.89
8.2.110.0330.30136.71
8.2.100.0330.26735.26
8.2.90.0100.27136.69
8.2.80.0270.29235.01
8.2.70.0200.26534.98
8.2.60.0100.29135.44
8.2.50.0270.30835.03
8.2.40.0230.26236.62
8.2.30.0200.29035.79
8.2.20.0100.26935.27
8.2.10.0130.27235.41
8.2.00.0070.28135.49
8.1.280.0630.81949.53
8.1.270.0170.24238.09
8.1.260.0230.20638.11
8.1.250.0330.21840.02
8.1.240.0440.28538.38
8.1.230.0370.26634.79
8.1.220.0200.25935.04
8.1.210.0230.27534.64
8.1.200.0300.25434.63
8.1.190.0160.26734.64
8.1.180.0330.31234.95
8.1.170.0230.27336.19
8.1.160.0030.27139.41
8.1.150.0170.26036.21
8.1.140.0200.26734.88
8.1.130.0070.26935.16
8.1.120.0100.27034.94
8.1.110.0100.31834.94
8.1.100.0200.25834.82
8.1.90.0100.26834.82
8.1.80.0170.26034.82
8.1.70.0170.25534.90
8.1.60.0130.33034.95
8.1.50.0270.31534.83
8.1.40.0100.33034.93
8.1.30.0170.33334.95
8.1.20.0100.33035.04
8.1.10.0330.69650.88
8.1.00.0200.70850.79
8.0.300.0470.57050.16
8.0.290.0330.65650.11
8.0.280.0330.64951.67
8.0.270.0200.63150.55
8.0.260.0330.56950.63
8.0.250.0330.59750.19
8.0.240.0270.55950.14
8.0.230.0200.56550.21
8.0.220.0270.57750.22
8.0.210.0300.55750.26
8.0.200.0200.59150.27
8.0.190.0330.69450.21
8.0.180.0270.72050.14
8.0.170.0400.70150.25
8.0.160.0330.69050.13
8.0.150.0270.71250.20
8.0.140.0300.70150.07
8.0.130.0631.49478.73
8.0.120.0270.70550.08
8.0.110.0300.69550.17
8.0.100.0300.69550.21
8.0.90.0300.70450.23
8.0.80.0921.05650.15
8.0.70.0300.72250.14
8.0.60.0400.70150.22
8.0.50.0500.69550.11
8.0.30.0680.82150.30
8.0.20.0761.02150.21
8.0.10.0200.71050.32
8.0.00.0810.99450.04
7.4.330.0130.87546.99
7.4.320.0270.71149.77
7.4.300.0300.61749.78
7.4.290.0330.77949.70
7.4.280.0230.84949.78
7.4.270.0400.80249.89
7.4.260.0500.91949.67
7.4.250.0300.78549.82
7.4.240.0230.79049.73
7.4.230.0200.80849.77
7.4.220.0661.41249.80
7.4.210.0601.13749.77
7.4.200.0430.77849.80
7.4.160.0901.07749.98
7.4.150.1291.27349.83
7.4.140.1121.41349.69
7.4.130.1141.24249.81
7.4.120.0871.08849.77
7.4.110.0531.15049.75
7.4.100.0851.28549.74
7.4.90.0691.13849.81
7.4.80.0951.23549.74
7.4.70.1191.27749.73
7.4.60.0731.17149.71
7.4.50.0100.62949.64
7.4.40.0791.12949.74
7.4.30.0911.53249.73
7.4.00.0430.95248.27
7.3.330.0571.94977.55
7.3.320.0571.91078.52
7.3.310.0270.91249.71
7.3.300.0300.91749.64
7.3.290.1111.49349.62
7.3.280.1041.54549.70
7.3.270.1131.40249.65
7.3.260.1051.30349.79
7.3.250.1051.26149.84
7.3.240.1061.27149.66
7.3.230.1151.36149.84
7.3.210.0891.25249.65
7.3.200.1111.49049.69
7.3.190.0791.27549.69
7.3.180.0891.23449.57
7.3.170.0821.26950.00
7.3.160.1091.32049.71
7.2.330.0801.30249.95
7.2.320.1121.35749.91
7.2.310.0931.23849.77
7.2.300.0851.27049.87
7.2.290.1061.48249.67
7.2.60.0470.75948.74
7.2.00.0330.97651.29
7.1.200.0400.76647.57
7.1.100.0961.00749.81
7.1.70.0170.77149.04
7.1.60.0130.80849.41
7.1.50.0370.82649.02
7.1.00.0271.06054.39
7.0.200.4530.94948.70
7.0.60.0430.89353.57
7.0.50.0230.85351.34
7.0.40.0300.74349.96
7.0.30.0800.83349.73
7.0.20.0570.95049.91
7.0.10.0130.84049.73
7.0.00.0300.87749.88
5.6.280.0202.48082.18
5.6.210.0402.46377.04
5.6.200.0132.49076.43
5.6.190.0372.46777.75
5.6.180.3632.13770.65
5.6.170.0532.45076.02
5.6.160.0202.48076.72
5.6.150.0402.46075.96
5.6.140.0202.48076.82
5.6.130.0272.47375.15
5.6.120.0202.48078.39
5.6.110.0132.48777.43
5.6.100.0302.47378.50
5.6.90.0172.48779.70
5.6.80.0332.47079.50
5.6.70.2472.25381.34
5.5.350.0102.49083.73
5.5.340.4132.08767.14
5.5.330.0272.47763.22
5.5.320.0332.46778.10
5.5.310.0472.45376.30
5.5.300.0232.47776.85
5.5.290.0302.47072.17
5.5.280.0132.48779.25
5.5.270.0332.47078.10
5.5.260.1532.34772.05
5.5.250.0372.46777.45
5.5.240.0432.44384.04
5.4.450.0932.39056.39
5.4.440.0932.40758.24
5.4.430.1032.39353.93
5.4.420.1072.39357.83
5.4.410.1072.38756.77
5.4.400.1032.39759.26
5.4.390.0932.40759.35
5.4.380.0972.40348.70
5.4.370.0902.41058.92
5.4.360.0932.40755.26
5.4.350.0932.40758.87
5.4.340.1002.40059.00
5.4.320.1172.38358.42
5.4.310.1202.38057.27
5.4.300.1102.39057.97
5.4.290.0902.41058.99
5.4.280.0802.41359.58
5.4.270.1032.39759.05
5.4.260.1102.39059.32
5.4.250.1202.37057.67
5.4.240.1032.39759.75
5.4.230.0932.40759.07
5.4.220.0932.40359.20
5.4.210.1072.39357.19
5.4.200.1132.38758.63
5.4.190.1002.38754.45
5.4.180.0872.41359.61
5.4.170.1032.39758.32
5.4.160.1102.38357.48
5.4.150.0902.41057.15
5.4.140.0872.41353.16
5.4.130.1032.38052.77
5.4.120.1072.38354.15
5.4.110.1202.37354.24
5.4.100.1072.39347.86
5.4.90.1132.38753.96
5.4.80.1102.38056.71
5.4.70.0202.47775.78
5.4.60.0502.44775.22
5.4.50.0172.48376.80
5.4.40.0372.46376.84
5.4.30.0272.47370.96
5.4.20.0272.47070.99

preferences:
56.62 ms | 401 KiB | 5 Q