3v4l.org

run code in 300+ PHP versions simultaneously
<?php $SYMB = "[This was filled in]"; $body = "Hello world \$SYMB $SYMB testing foo"; $body = preg_replace('/\$([A-Z]{1,6})/', '\\1', $body); print $body;

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)
8.3.60.0090.00616.50
8.3.50.0090.01218.32
8.3.40.0100.00719.00
8.3.30.0110.00419.10
8.3.20.0050.00320.20
8.3.10.0080.00021.89
8.3.00.0080.00019.51
8.2.180.0060.01318.41
8.2.170.0090.00622.96
8.2.160.0030.01020.39
8.2.150.0030.00624.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00319.66
8.2.110.0090.00020.39
8.2.100.0040.00817.75
8.2.90.0040.00419.08
8.2.80.0040.00417.97
8.2.70.0000.00817.75
8.2.60.0040.00417.80
8.2.50.0080.00018.07
8.2.40.0050.00318.22
8.2.30.0070.00018.07
8.2.20.0070.00017.89
8.2.10.0050.00318.07
8.2.00.0070.00017.76
8.1.280.0120.00625.92
8.1.270.0060.00320.70
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0030.00623.80
8.1.230.0070.00417.48
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0100.00017.35
8.1.190.0040.00417.23
8.1.180.0030.00518.10
8.1.170.0050.00320.48
8.1.160.0040.00421.92
8.1.150.0000.00718.88
8.1.140.0070.00017.59
8.1.130.0070.00017.85
8.1.120.0040.00417.54
8.1.110.0040.00417.57
8.1.100.0000.00817.42
8.1.90.0000.00717.54
8.1.80.0070.00017.54
8.1.70.0030.00317.50
8.1.60.0060.00317.65
8.1.50.0050.00317.63
8.1.40.0040.00417.42
8.1.30.0080.00017.74
8.1.20.0000.00817.63
8.1.10.0000.00817.58
8.1.00.0080.00017.60
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0070.00018.50
8.0.270.0070.00016.86
8.0.260.0000.00617.26
8.0.250.0080.00017.11
8.0.240.0000.00716.93
8.0.230.0030.00717.07
8.0.220.0000.00716.95
8.0.210.0000.00717.02
8.0.200.0030.00317.04
8.0.190.0030.00517.09
8.0.180.0030.00517.13
8.0.170.0000.00916.95
8.0.160.0040.00417.14
8.0.150.0040.00416.83
8.0.140.0070.00017.03
8.0.130.0030.00313.46
8.0.120.0040.00416.89
8.0.110.0040.00417.04
8.0.100.0050.00317.05
8.0.90.0040.00417.02
8.0.80.0100.01017.09
8.0.70.0070.00016.88
8.0.60.0000.00717.03
8.0.50.0040.00417.04
8.0.30.0150.00817.13
8.0.20.0130.00617.40
8.0.10.0000.00716.90
8.0.00.0050.01116.81
7.4.330.0050.00015.12
7.4.320.0060.00016.74
7.4.300.0060.00016.72
7.4.290.0000.00716.50
7.4.280.0090.00016.59
7.4.270.0000.00716.71
7.4.260.0070.00016.55
7.4.250.0050.00216.67
7.4.240.0030.00516.73
7.4.230.0070.00016.84
7.4.220.0070.01116.57
7.4.210.0110.00416.77
7.4.200.0070.00016.55
7.4.160.0080.00816.60
7.4.150.0120.00917.40
7.4.140.0090.00817.86
7.4.130.0120.00816.58
7.4.120.0090.00916.77
7.4.110.0110.00716.68
7.4.100.0160.00016.53
7.4.90.0130.00616.63
7.4.80.0070.01319.39
7.4.70.0120.00916.69
7.4.60.0130.00316.82
7.4.50.0020.00216.67
7.4.40.0180.00616.58
7.4.30.0090.00816.58
7.4.00.0060.01014.97
7.3.330.0080.00013.16
7.3.320.0120.00013.30
7.3.310.0040.00416.42
7.3.300.0070.00016.43
7.3.290.0050.00916.42
7.3.280.0110.00816.39
7.3.270.0170.01117.40
7.3.260.0030.01416.45
7.3.250.0110.00616.57
7.3.240.0080.01616.36
7.3.230.0000.01616.77
7.3.210.0090.00916.72
7.3.200.0030.01819.39
7.3.190.0120.01016.70
7.3.180.0090.01216.52
7.3.170.0070.01016.63
7.3.160.0110.01416.73
7.3.10.0110.01116.23
7.3.00.0100.01016.55
7.2.330.0130.00916.76
7.2.320.0160.01516.61
7.2.310.0110.00616.69
7.2.300.0100.01016.58
7.2.290.0120.00616.88
7.2.130.0140.01116.64
7.2.120.0510.00616.45
7.2.110.0130.00416.61
7.2.100.0270.01416.23
7.2.90.0190.00416.63
7.2.80.0200.01016.33
7.2.70.0130.00917.07
7.2.60.0230.01116.73
7.2.50.0290.00416.55
7.2.40.0160.01016.89
7.2.30.0140.01116.34
7.2.20.0480.00616.50
7.2.10.0110.00716.58
7.2.00.0100.00818.01
7.1.250.0280.00716.00
7.1.200.0000.01116.02
7.1.100.0000.01218.18
7.1.70.0000.00817.52
7.1.60.0100.01319.46
7.1.50.0000.01716.98
7.1.00.0000.08022.50
7.0.200.0480.00614.94
7.0.140.0070.05322.18
7.0.60.0130.08019.93
7.0.50.0070.04317.83
7.0.40.0070.08020.00
7.0.30.0270.08320.18
7.0.20.0270.08720.34
7.0.10.0170.04720.10
7.0.00.0130.08320.03
5.6.280.0130.06020.91
5.6.210.0070.08020.62
5.6.200.0070.07318.19
5.6.190.0070.04720.41
5.6.180.0470.05320.67
5.6.170.0300.07320.39
5.6.160.0130.04320.37
5.6.150.0100.06018.12
5.6.140.0070.08018.22
5.6.130.0070.07718.21
5.6.120.0100.08721.11
5.6.110.0000.04321.12
5.6.100.0070.08320.95
5.6.90.0070.09321.11
5.6.80.0030.04320.50
5.5.350.0300.06020.35
5.5.340.0070.06717.91
5.5.330.0030.08020.19
5.5.320.0230.04020.29
5.5.310.0300.06720.30
5.5.300.0130.07717.97
5.5.290.0030.08317.92
5.5.280.0000.05720.64
5.5.270.0100.08020.74
5.5.260.0130.08020.75
5.5.250.0000.04720.70
5.5.240.0030.08020.18
5.4.450.0630.06019.60
5.4.440.0830.05319.55
5.4.430.0770.05319.27
5.4.420.0870.05319.54
5.4.410.0570.06719.39
5.4.400.0870.05718.72
5.4.390.1100.05318.62
5.4.380.0730.05718.40
5.4.370.1200.06018.54
5.4.360.0600.05718.59
5.4.350.0170.07318.70
5.4.340.0770.07018.50
5.4.320.0370.05018.61
5.4.310.0130.05318.77
5.4.300.0230.05318.46
5.4.290.0330.05018.82
5.4.280.0630.05318.46
5.4.270.0100.05718.46
5.4.260.0230.06018.67
5.4.250.0030.06318.73
5.4.240.0570.05018.64
5.4.230.0300.05318.48
5.4.220.0130.06018.49
5.4.210.0370.05718.69
5.4.200.0300.05316.53
5.4.190.0230.06018.58
5.4.180.0430.06318.54
5.4.170.0300.05018.54
5.4.160.0130.07318.70
5.4.150.0130.07718.70
5.4.140.0530.06016.22
5.4.130.0300.07316.21
5.4.120.0300.07316.21
5.4.110.0600.05016.14
5.4.100.0070.07716.24
5.4.90.0270.05716.14
5.4.80.0200.06316.04
5.4.70.0670.07716.19
5.4.60.1230.08016.14
5.4.50.1130.07016.01
5.4.40.0730.05716.20
5.4.30.0870.05016.31
5.4.20.0800.05016.11
5.4.10.0800.05716.21
5.4.00.0830.05715.57
5.3.290.0900.07714.71
5.3.280.0800.05714.74
5.3.270.0770.05714.67
5.3.260.0800.05014.60
5.3.250.0700.05714.59
5.3.240.0930.06714.70
5.3.230.0800.04714.66
5.3.220.0770.06714.49
5.3.210.0900.06014.71
5.3.200.0600.05714.63
5.3.190.0070.05314.51
5.3.180.0130.05014.54
5.3.170.0870.05014.54
5.3.160.0100.05314.52
5.3.150.0130.05014.61
5.3.140.0700.06014.46
5.3.130.0400.05014.45
5.3.120.0570.06014.70
5.3.110.0130.05314.61
5.3.100.0330.03714.01
5.3.90.0130.05013.95
5.3.80.0230.04314.09
5.3.70.0200.04713.98
5.3.60.0130.05013.95
5.3.50.0200.04713.94
5.3.40.0200.05013.91
5.3.30.0070.05313.82
5.3.20.0200.04313.65
5.3.10.0130.04713.58
5.3.00.0100.05313.71
5.2.170.0100.04311.11
5.2.160.0100.04311.09
5.2.150.0100.04311.11
5.2.140.0130.04011.14
5.2.130.0230.03711.08
5.2.120.0070.04311.14
5.2.110.0130.03711.05
5.2.100.0100.04311.17
5.2.90.0100.04311.07
5.2.80.0130.04711.06
5.2.70.0100.04311.07
5.2.60.0170.04011.11
5.2.50.0130.04011.05
5.2.40.0130.03711.21
5.2.30.0200.03710.95
5.2.20.0100.04711.03
5.2.10.0130.03711.01
5.2.00.0130.04010.80
5.1.60.0100.0339.97
5.1.50.0100.03310.11
5.1.40.0070.03710.01
5.1.30.0130.03310.33
5.1.20.0100.04710.42
5.1.10.0170.02710.05
5.1.00.0100.03310.18
5.0.50.0030.0338.59
5.0.40.0100.0308.38
5.0.30.0000.0508.20
5.0.20.0100.0308.23
5.0.10.0030.0278.22
5.0.00.0300.0438.14
4.4.90.0200.0105.93
4.4.80.0130.0205.87
4.4.70.0100.0175.86
4.4.60.0030.0275.83
4.4.50.0000.0235.93
4.4.40.0000.0405.85
4.4.30.0100.0175.85
4.4.20.0000.0275.95
4.4.10.0100.0175.96
4.4.00.0030.0375.90
4.3.110.0000.0305.86
4.3.100.0030.0275.84
4.3.90.0030.0235.84
4.3.80.0070.0335.81
4.3.70.0170.0205.82
4.3.60.0030.0235.86
4.3.50.0100.0235.78
4.3.40.0200.0375.82
4.3.30.0030.0234.57
4.3.20.0000.0274.53
4.3.10.0070.0174.52
4.3.00.0200.0207.21

preferences:
65.2 ms | 400 KiB | 5 Q