3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = '#\&(amp;)?#'; echo preg_replace($regex, '-', 'Two + Two & One + One ?') . "\n"; echo preg_replace($regex, '-', 'Two + Two &amp; One + One ?') . "\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)
8.5.10.0100.00816.55
8.5.00.0130.01019.99
8.4.150.0020.00014.05
8.4.140.0100.01317.76
8.4.130.0130.00718.01
8.4.120.0100.00720.45
8.4.110.0150.00520.68
8.4.100.0150.00617.62
8.4.90.0110.01017.97
8.4.80.0040.00420.03
8.4.70.0130.00418.09
8.4.60.0070.00118.85
8.4.50.0040.00520.59
8.4.40.0170.00318.01
8.4.30.0100.01018.13
8.4.20.0160.00318.49
8.4.10.0100.01017.87
8.3.280.0100.01118.57
8.3.270.0140.00616.79
8.3.260.0060.00316.87
8.3.250.0110.00818.64
8.3.240.0130.00816.77
8.3.230.0120.00716.54
8.3.220.0140.00418.71
8.3.210.0090.00916.53
8.3.200.0070.00216.82
8.3.190.0120.00617.32
8.3.180.0100.00816.62
8.3.170.0000.01816.97
8.3.160.0110.00720.41
8.3.150.0070.01118.70
8.3.140.0080.00017.32
8.3.130.0030.01618.26
8.3.120.0080.00018.94
8.3.110.0080.00016.77
8.3.100.0030.01324.06
8.3.90.0040.00426.77
8.3.80.0060.00318.31
8.3.70.0070.01418.43
8.3.60.0060.01316.75
8.3.50.0100.00318.35
8.3.40.0100.01018.84
8.3.30.0040.01118.82
8.3.20.0120.00619.16
8.3.10.0060.00323.70
8.3.00.0050.00323.65
8.2.290.0120.00618.88
8.2.280.0110.00818.35
8.2.270.0040.01517.03
8.2.260.0110.00416.57
8.2.250.0070.00718.62
8.2.240.0000.00817.28
8.2.230.0040.00420.94
8.2.220.0130.00637.54
8.2.210.0140.00426.77
8.2.200.0110.00018.66
8.2.190.0060.00916.63
8.2.180.0070.00718.79
8.2.170.0120.00322.96
8.2.160.0100.01019.21
8.2.150.0030.00724.18
8.2.140.0040.00424.66
8.2.130.0040.00420.01
8.2.120.0000.00826.35
8.2.110.0040.00721.00
8.2.100.0070.00417.84
8.2.90.0030.00519.27
8.2.80.0000.00917.97
8.2.70.0000.01117.93
8.2.60.0080.00018.04
8.2.50.0050.00318.10
8.2.40.0000.00821.19
8.2.30.0030.00619.34
8.2.20.0040.00418.19
8.2.10.0040.00419.47
8.2.00.0070.00019.38
8.1.330.0140.00516.62
8.1.320.0110.00916.32
8.1.310.0030.01418.38
8.1.300.0070.00418.62
8.1.290.0050.00530.84
8.1.280.0120.01225.92
8.1.270.0000.00822.09
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0000.00921.30
8.1.230.0050.00518.91
8.1.220.0040.00417.74
8.1.210.0100.00018.77
8.1.200.0030.00617.48
8.1.190.0060.00317.35
8.1.180.0000.00718.10
8.1.170.0050.00218.79
8.1.160.0050.00218.91
8.1.150.0070.00018.82
8.1.140.0040.00417.72
8.1.130.0030.00319.04
8.1.120.0090.00017.51
8.1.110.0000.00717.55
8.1.100.0100.00017.58
8.1.90.0030.00517.57
8.1.80.0080.00017.54
8.1.70.0040.00417.50
8.1.60.0040.00417.63
8.1.50.0000.00917.67
8.1.40.0000.00817.67
8.1.30.0030.00517.80
8.1.20.0040.00417.78
8.1.10.0070.00017.73
8.1.00.0070.00017.52
8.0.300.0060.00318.77
8.0.290.0090.00016.88
8.0.280.0030.00318.46
8.0.270.0000.00717.27
8.0.260.0040.00417.19
8.0.250.0000.00716.99
8.0.240.0000.00817.06
8.0.230.0030.00517.12
8.0.220.0040.00416.91
8.0.210.0050.00317.01
8.0.200.0000.00917.11
8.0.190.0000.00816.96
8.0.180.0050.00317.03
8.0.170.0060.00317.02
8.0.160.0040.00417.09
8.0.150.0000.00717.05
8.0.140.0030.00317.00
8.0.130.0050.00313.50
8.0.120.0040.00416.87
8.0.110.0040.00416.95
8.0.100.0000.00717.09
8.0.90.0000.00716.94
8.0.80.0030.01316.99
8.0.70.0070.00016.93
8.0.60.0000.00716.98
8.0.50.0060.00316.82
8.0.30.0080.01317.30
8.0.20.0170.01317.40
8.0.10.0040.00417.12
8.0.00.0140.00516.84
7.4.330.0050.00015.55
7.4.320.0060.00016.63
7.4.300.0070.00016.55
7.4.290.0030.00316.79
7.4.280.0000.00916.73
7.4.270.0030.00716.62
7.4.260.0030.00716.63
7.4.250.0000.00816.73
7.4.240.0000.00716.60
7.4.230.0070.00016.75
7.4.220.0040.00416.54
7.4.210.0060.01016.63
7.4.200.0040.00416.75
7.4.160.0100.00816.60
7.4.140.0120.00617.86
7.4.130.0030.01316.58
7.4.120.0120.00716.61
7.4.110.0120.01216.63
7.4.100.0100.00716.73
7.4.90.0180.00416.67
7.4.80.0040.01919.39
7.4.70.0080.00816.61
7.4.60.0070.01616.57
7.4.50.0070.01016.47
7.4.40.0130.01016.61
7.4.00.0090.00614.77
7.3.330.0000.00513.23
7.3.320.0060.00013.08
7.3.310.0000.00716.32
7.3.300.0000.00716.26
7.3.290.0000.00716.16
7.3.280.0090.00616.34
7.3.260.0100.01016.45
7.3.240.0140.00816.60
7.3.230.0140.00616.52
7.3.210.0090.00916.60
7.3.200.0130.00316.77
7.3.190.0060.01316.35
7.3.180.0080.00816.75
7.3.170.0070.01016.63
7.3.160.0120.00616.40
7.3.10.0120.00616.51
7.3.00.0080.00516.47
7.2.330.0140.01016.49
7.2.320.0120.00616.76
7.2.310.0100.00716.75
7.2.300.0070.01016.66
7.2.290.0060.01216.50
7.2.130.0080.01116.79
7.2.120.0060.00916.92
7.2.110.0110.00816.95
7.2.100.0040.01016.96
7.2.90.0130.00416.79
7.2.80.0080.00816.76
7.2.70.0110.00816.90
7.2.60.0030.01016.92
7.2.50.0080.00916.80
7.2.40.0070.01116.89
7.2.30.0060.00816.89
7.2.20.0060.00816.93
7.2.10.0050.01016.81
7.2.00.0070.00916.77
7.1.250.0050.00715.73
7.1.200.0040.00715.78
7.1.170.0030.01515.72
7.1.160.0100.00715.72
7.1.150.0090.00915.80
7.1.140.0070.00615.90
7.1.130.0030.01415.95
7.1.120.0060.00615.48
7.1.110.0120.00615.89
7.1.100.0110.00315.80
7.1.90.0060.01115.70
7.1.80.0060.00915.91
7.1.70.0140.00315.85
7.1.60.0260.01033.85
7.1.50.0190.01933.65
7.1.40.0250.01633.88
7.1.30.0380.00433.79
7.1.20.0270.00733.91
7.1.10.0100.01015.72
7.1.00.0130.00415.86

preferences:
183.1 ms | 403 KiB | 5 Q