3v4l.org

run code in 300+ PHP versions simultaneously
<?php $limit = 10000000; $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)
8.3.60.0170.27432.36
8.3.50.0480.25131.97
8.3.40.0430.24634.18
8.3.30.0460.24834.00
8.3.20.0200.13235.75
8.3.10.0200.14037.42
8.3.00.0230.12733.48
8.2.180.0400.23731.82
8.2.170.0470.25134.16
8.2.160.0470.24335.77
8.2.150.0260.12534.18
8.2.140.0230.12236.30
8.2.130.0140.13833.43
8.2.120.0230.12932.96
8.2.110.0170.20635.00
8.2.100.0230.18233.29
8.2.90.0130.18133.34
8.2.80.0300.18233.12
8.2.70.0200.22432.92
8.2.60.0200.17733.38
8.2.50.0130.18533.05
8.2.40.0100.18635.12
8.2.30.0200.19033.40
8.2.20.0070.18633.01
8.2.10.0030.19233.32
8.2.00.0100.18433.20
8.1.280.0270.25831.58
8.1.270.0230.16435.82
8.1.260.0230.12835.73
8.1.250.0230.14937.81
8.1.240.0170.20436.47
8.1.230.0430.16636.53
8.1.220.0100.18133.01
8.1.210.0160.21434.32
8.1.200.0130.18532.72
8.1.190.0170.18032.77
8.1.180.0100.19833.05
8.1.170.0130.20834.04
8.1.160.0030.18937.20
8.1.150.0130.18534.16
8.1.140.0130.18532.59
8.1.130.0100.18232.89
8.1.120.0130.17732.75
8.1.110.0070.22032.68
8.1.100.0170.17732.63
8.1.90.0030.18932.70
8.1.80.0100.21332.61
8.1.70.0030.18632.70
8.1.60.0170.22032.75
8.1.50.0100.22432.68
8.1.40.0100.22732.82
8.1.30.0170.22432.87
8.1.20.0200.21932.88
8.1.10.0100.23132.69
8.1.00.0130.22232.71
8.0.300.0170.17735.26
8.0.290.0070.22531.88
8.0.280.0070.21733.57
8.0.270.0100.20332.47
8.0.260.0130.19132.46
8.0.250.0070.21032.10
8.0.240.0100.18132.07
8.0.230.0030.20332.10
8.0.220.0070.18431.84
8.0.210.0130.19331.93
8.0.200.0100.18231.90
8.0.190.0100.22732.01
8.0.180.0070.22831.97
8.0.170.0170.25132.07
8.0.160.0130.22232.03
8.0.150.0070.22631.89
8.0.140.0130.22331.98
8.0.130.0070.23528.48
8.0.120.0130.22231.90
8.0.110.0100.22532.02
8.0.100.0100.22231.98
8.0.90.0170.21831.93
8.0.80.0200.30732.00
8.0.70.0170.22531.92
8.0.60.0100.22831.86
8.0.50.0130.24631.85
8.0.30.0350.26432.23
8.0.20.0430.32432.30
8.0.10.0130.22231.95
8.0.00.0290.33132.02
7.4.330.0030.25228.82
7.4.320.0170.22431.55
7.4.300.0070.20931.59
7.4.290.0130.24931.64
7.4.280.0200.33431.67
7.4.270.0070.25331.71
7.4.260.0030.25931.47
7.4.250.0070.28531.64
7.4.240.0150.24631.57
7.4.230.0070.26131.47
7.4.220.0490.42031.53
7.4.210.0230.39031.66
7.4.200.0100.25231.38
7.4.160.0400.35431.68
7.4.150.0390.36731.55
7.4.140.0620.51231.61
7.4.130.0590.39931.55
7.4.120.0490.35831.62
7.4.110.0400.40831.55
7.4.100.0400.58831.59
7.4.90.0590.33831.54
7.4.80.0200.40231.54
7.4.70.0200.37331.64
7.4.60.0360.34831.68
7.4.50.0100.21231.39
7.4.40.0500.54131.79
7.4.30.0450.50131.47
7.4.00.0200.31229.95
7.3.330.0030.29728.43
7.3.320.0100.29028.43
7.3.310.0030.30431.51
7.3.300.0100.28931.65
7.3.290.0270.40131.61
7.3.280.0470.57131.58
7.3.270.0470.47331.80
7.3.260.0300.45331.53
7.3.250.0400.41631.68
7.3.240.0300.41531.57
7.3.230.0490.43231.48
7.3.210.0390.44331.80
7.3.200.0230.61131.53
7.3.190.0400.37831.64
7.3.180.0300.39831.72
7.3.170.0330.47531.61
7.3.160.0260.42831.98
7.2.330.0360.39831.77
7.2.320.0330.41831.84
7.2.310.0320.44132.04
7.2.300.0390.37631.82
7.2.290.0580.37131.73
7.2.60.0130.23730.67
7.2.00.0200.27133.36
7.1.200.0300.27029.40
7.1.100.0130.26131.89
7.1.70.0070.26331.01
7.1.60.0170.30330.99
7.1.50.0130.22931.05
7.1.00.0130.50036.33
7.0.200.1320.29830.44
7.0.60.0100.29035.30
7.0.50.0170.34733.27
7.0.40.0100.30031.88
7.0.30.0830.28731.81
7.0.20.0400.30731.65
7.0.10.0200.34031.77
7.0.00.0230.33731.87
5.6.280.0100.53350.19
5.6.210.0170.51347.70
5.6.200.0200.45745.28
5.6.190.0070.51047.26
5.6.180.5570.43347.42
5.6.170.0400.56347.38
5.6.160.0270.44747.52
5.6.150.0170.50345.20
5.6.140.0170.51745.25
5.6.130.0170.49745.27
5.6.120.0170.51348.09
5.6.110.0030.50048.08
5.6.100.0130.43748.04
5.6.90.0100.51048.07
5.6.80.0200.46347.47
5.6.70.6200.43347.43
5.5.350.0230.51347.38
5.5.340.0030.49044.98
5.5.330.0130.49747.35
5.5.320.0300.45747.25
5.5.310.0300.46047.14
5.5.300.0170.49045.03
5.5.290.0130.45045.01
5.5.280.0230.50047.98
5.5.270.0230.51047.74
5.5.260.0130.51347.86
5.5.250.0130.47347.71
5.5.240.0530.48747.33
5.4.450.1200.71046.30
5.4.440.1870.65346.61
5.4.430.1270.68046.42
5.4.420.1370.64346.42
5.4.410.1600.70346.30
5.4.400.1630.64745.95
5.4.390.1430.63746.15
5.4.380.1470.86046.10
5.4.370.1630.66346.07
5.4.360.1500.62746.09
5.4.350.1600.61046.10
5.4.340.1400.67046.05
5.4.320.1270.64746.28
5.4.310.1300.64045.97
5.4.300.1270.64046.27
5.4.290.1170.63346.11
5.4.280.1300.62346.15
5.4.270.1100.66746.11
5.4.260.1430.61746.15
5.4.250.1500.60745.83
5.4.240.1270.59745.96
5.4.230.1300.61746.05
5.4.220.1130.60046.23
5.4.210.1100.60746.50
5.4.200.1330.60046.04
5.4.190.1130.62046.00
5.4.180.1200.59746.06
5.4.170.1230.63045.83
5.4.160.1230.62346.29
5.4.150.1170.62346.03
5.4.140.1100.64743.31
5.4.130.1470.66043.45
5.4.120.1100.68043.43
5.4.110.1030.64043.93
5.4.100.1200.60343.14
5.4.90.1200.60343.23
5.4.80.1130.61743.13
5.4.70.0100.45043.34
5.4.60.0470.42743.38
5.4.50.0230.51343.37
5.4.40.0300.48743.12
5.4.30.0300.42743.43
5.4.20.0400.42343.46

preferences:
54.99 ms | 401 KiB | 5 Q