3v4l.org

run code in 300+ PHP versions simultaneously
<?php $My_String = preg_replace("/\h+/", "[\h-]+", "alpha beta gamma delta"); $strings = [ "My codephrase is alPha Beta-GaMMa deLTa and your codephrase is ALpha-beTA gAmmA-DElta", "alpha beta gamma delta", "alpha beta gamma-delta", "alpha beta-gamma delta", "alpha beta-gamma-delta", "alpha-beta gamma delta", "alpha-beta gamma-delta", "alpha-beta-gamma delta", "alpha-beta-gamma-delta", "alpha-beta-gamma-d" ]; foreach ($strings as $str) { $str = preg_replace("/\b$My_String\b/i", "<strong>$0</strong>", $str); echo $str . PHP_EOL; }

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)
8.4.120.0080.01124.07
8.4.110.0120.01018.71
8.4.100.0120.00920.32
8.4.90.0120.00921.13
8.4.80.0140.00719.68
8.4.70.0240.01118.86
8.4.60.0260.00920.27
8.4.50.0190.00818.94
8.4.40.0200.00719.54
8.4.30.0240.00419.07
8.4.20.0270.00919.27
8.4.10.0270.01018.81
8.3.250.0100.00818.73
8.3.240.0130.00716.99
8.3.230.0130.00917.61
8.3.220.0120.00718.88
8.3.210.0170.00418.55
8.3.200.0120.00517.62
8.3.190.0130.00817.79
8.3.180.0040.00518.95
8.3.170.0180.00617.54
8.3.160.0210.00517.80
8.3.150.0170.00918.87
8.3.140.0270.01019.56
8.3.130.0260.00618.52
8.3.120.0140.00218.86
8.3.110.0160.01019.71
8.3.100.0180.00321.42
8.3.90.0220.00622.60
8.3.80.0170.00418.61
8.3.70.0140.00917.53
8.3.60.0250.00717.57
8.3.50.0090.00817.50
8.3.40.0140.00719.21
8.3.30.0120.00519.21
8.3.20.0120.00221.89
8.3.10.0110.00222.23
8.3.00.0080.00222.80
8.2.290.0110.00519.72
8.2.280.0130.00618.51
8.2.270.0130.00720.50
8.2.260.0140.00817.60
8.2.250.0100.00517.86
8.2.240.0200.00817.87
8.2.230.0210.00920.43
8.2.220.0170.00727.90
8.2.210.0150.00522.60
8.2.200.0160.00518.59
8.2.190.0200.00418.37
8.2.180.0170.00522.19
8.2.170.0230.00619.35
8.2.160.0210.00721.32
8.2.150.0130.00222.66
8.2.140.0080.00722.15
8.2.130.0190.00822.65
8.2.120.0100.00522.94
8.2.110.0290.01020.78
8.2.100.0230.00619.71
8.2.90.0180.00918.82
8.2.80.0230.00319.26
8.2.70.0200.00518.74
8.2.60.0180.00718.90
8.2.50.0180.00718.72
8.2.40.0200.00318.77
8.2.30.0180.00618.69
8.2.20.0200.00818.79
8.2.10.0170.00719.56
8.2.00.0190.00519.36
8.1.330.0150.00521.84
8.1.320.0200.00917.39
8.1.310.0190.00617.37
8.1.300.0210.00518.29
8.1.290.0210.00624.53
8.1.280.0210.00622.09
8.1.270.0180.00722.07
8.1.260.0180.00722.90
8.1.250.0210.00323.70
8.1.240.0180.00719.84
8.1.230.0180.00618.48
8.1.220.0110.00418.63
8.1.210.0160.00619.00
8.1.200.0180.00718.27
8.1.190.0170.00518.27
8.1.180.0150.00718.67
8.1.170.0180.00518.99
8.1.160.0190.00619.07
8.1.150.0120.00919.12
8.1.140.0090.00319.00
8.1.130.0180.00919.68
8.1.120.0140.00918.41
8.1.110.0150.00918.40
8.1.100.0170.00518.42
8.1.90.0180.00518.52
8.1.80.0180.00718.41
8.1.70.0170.00518.43
8.1.60.0160.00618.71
8.1.50.0150.00818.43
8.1.40.0160.00818.48
8.1.30.0210.00518.61
8.1.20.0200.00518.60
8.1.10.0200.00417.60
8.1.00.0160.00617.52
8.0.300.0140.00817.71
8.0.290.0170.00816.73
8.0.280.0150.00817.59
8.0.270.0170.00617.42
8.0.260.0180.00517.59
8.0.250.0170.00416.87
8.0.240.0180.00616.92
8.0.230.0190.00416.84
8.0.220.0180.00716.84
8.0.210.0170.00616.83
8.0.200.0180.00516.90
8.0.190.0170.00616.96
8.0.180.0170.00616.91
8.0.170.0150.00616.96
8.0.160.0150.00716.87
8.0.150.0150.00816.78
8.0.140.0200.00516.73
8.0.130.0250.00515.09
8.0.120.0080.00516.91
8.0.110.0120.00116.83
8.0.100.0110.00316.79
8.0.90.0070.00516.77
8.0.80.0080.01116.94
8.0.70.0100.00316.76
8.0.60.0120.00116.81
8.0.50.0150.00716.80
8.0.30.0330.00416.84
8.0.20.0370.00516.98
8.0.10.0250.00916.91
8.0.00.0390.01117.13
7.4.330.0170.00516.05
7.4.320.0150.00716.63
7.4.300.0190.00316.51
7.4.290.0170.00516.54
7.4.280.0160.00616.49
7.4.270.0150.00616.67
7.4.260.0120.01014.96
7.4.250.0170.00516.56
7.4.240.0160.00516.55
7.4.230.0160.00616.44
7.4.220.0140.00316.61
7.4.210.0100.01016.77
7.4.200.0080.00416.72
7.4.190.0150.00416.46
7.4.180.0190.00516.63
7.4.160.0250.00716.57
7.4.150.0340.00816.72
7.4.140.0280.01116.66
7.4.130.0260.00816.56
7.4.120.0290.00616.62
7.4.110.0310.01216.54
7.4.100.0270.00916.67
7.4.90.0490.00616.58
7.4.80.0230.01216.72
7.4.70.0280.00716.57
7.4.60.0220.01016.71
7.4.50.0210.01016.57
7.4.40.0190.01116.46
7.4.30.0240.01016.69
7.4.20.0310.00516.54
7.4.10.0310.00916.39
7.4.00.0240.01016.51
7.3.330.0150.00616.37
7.3.320.0120.00514.84
7.3.310.0110.00516.24
7.3.300.0160.00616.46
7.3.290.0130.00816.48
7.3.280.0380.00516.36
7.3.270.0260.00716.38
7.3.260.0250.00716.33
7.3.250.0240.00716.34
7.3.240.0420.00916.31
7.3.230.0230.01016.36
7.3.220.0290.00516.25
7.3.210.0380.00516.18
7.3.200.0260.00916.17
7.3.190.0260.01016.31
7.3.180.0460.01216.30
7.3.170.0250.00916.23
7.3.160.0270.00816.13
7.3.150.0220.01216.12
7.3.140.0280.00816.28
7.3.130.0260.00816.13
7.3.120.0380.00416.19
7.3.110.0330.01116.10
7.3.100.0270.00616.35
7.3.90.0240.00916.56
7.3.80.0260.00716.34
7.3.70.0220.01116.24
7.3.60.0250.00716.48
7.3.50.0250.00716.31
7.3.40.0230.01116.51
7.3.30.0230.00916.29
7.3.20.0270.00817.19
7.3.10.0270.00817.22
7.3.00.0320.00617.23

preferences:
29.71 ms | 403 KiB | 5 Q