3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'hello, [h[o]w]. please don\'t remove [are] you?'; echo preg_replace("/\[[^\]]+\]/", ' ', $a);

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)
8.3.60.0140.00718.20
8.3.50.0130.00421.97
8.3.40.0100.00318.96
8.3.30.0140.00018.87
8.3.20.0030.00520.21
8.3.10.0000.00823.64
8.3.00.0000.00719.14
8.2.180.0060.00916.88
8.2.170.0070.00722.96
8.2.160.0060.00920.52
8.2.150.0000.00724.18
8.2.140.0050.00324.66
8.2.130.0050.00226.16
8.2.120.0040.00421.02
8.2.110.0090.00022.25
8.2.100.0070.00417.84
8.2.90.0040.00419.13
8.2.80.0080.00017.97
8.2.70.0080.00017.63
8.2.60.0000.00817.80
8.2.50.0060.00618.07
8.2.40.0050.00218.16
8.2.30.0070.00018.24
8.2.20.0050.00217.93
8.2.10.0040.00418.02
8.2.00.0040.00417.84
8.1.280.0070.00725.92
8.1.270.0060.00323.79
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.19
8.1.230.0080.00419.12
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0030.00617.35
8.1.190.0050.00317.35
8.1.180.0040.00418.10
8.1.170.0040.00418.71
8.1.160.0040.00421.86
8.1.150.0070.00018.64
8.1.140.0040.00417.41
8.1.130.0040.00417.90
8.1.120.0000.00717.46
8.1.110.0040.00417.45
8.1.100.0000.00717.46
8.1.90.0040.00317.45
8.1.80.0070.00017.57
8.1.70.0070.00017.57
8.1.60.0050.00517.71
8.1.50.0090.00017.59
8.1.40.0040.00417.60
8.1.30.0060.00317.78
8.1.20.0000.00717.74
8.1.10.0090.00017.56
8.1.00.0040.00417.60
8.0.300.0000.00718.77
8.0.290.0040.00417.05
8.0.280.0000.00718.45
8.0.270.0050.00317.39
8.0.260.0030.00317.16
8.0.250.0040.00416.97
8.0.240.0000.00717.07
8.0.230.0070.00016.99
8.0.220.0030.00516.89
8.0.210.0000.00717.04
8.0.200.0000.00617.04
8.0.190.0040.00417.07
8.0.180.0000.00716.95
8.0.170.0040.00417.05
8.0.160.0000.00716.97
8.0.150.0050.00216.94
8.0.140.0050.00217.00
8.0.130.0000.00513.45
8.0.120.0060.00316.97
8.0.110.0000.00816.81
8.0.100.0000.00817.02
8.0.90.0030.00317.01
8.0.80.0040.01116.96
8.0.70.0040.00416.96
8.0.60.0000.00817.04
8.0.50.0000.00816.84
8.0.30.0160.00817.32
8.0.20.0110.00817.40
8.0.10.0070.00017.13
8.0.00.0120.00617.04
7.4.330.0060.00015.00
7.4.320.0060.00016.73
7.4.300.0060.00316.69
7.4.290.0000.00716.67
7.4.280.0040.00716.72
7.4.270.0070.00016.64
7.4.260.0080.00016.53
7.4.250.0070.00016.53
7.4.240.0000.00716.67
7.4.230.0070.00016.71
7.4.220.0070.01116.77
7.4.210.0110.00316.69
7.4.200.0000.00716.82
7.4.190.0000.00716.80
7.4.160.0080.00816.64
7.4.150.0150.00617.40
7.4.140.0090.01117.86
7.4.130.0080.01116.84
7.4.120.0100.00716.81
7.4.110.0070.01016.77
7.4.100.0080.01116.44
7.4.90.0080.00816.61
7.4.80.0070.01019.39
7.4.70.0030.01516.53
7.4.60.0060.01016.59
7.4.50.0000.00816.46
7.4.40.0100.00716.38
7.4.30.0110.00516.64
7.4.00.0070.01015.13
7.3.330.0000.00613.04
7.3.320.0000.00513.07
7.3.310.0040.00416.43
7.3.300.0000.00716.31
7.3.290.0060.00916.32
7.3.280.0060.01016.26
7.3.270.0080.01117.40
7.3.260.0090.00916.54
7.3.250.0080.00916.55
7.3.240.0140.00316.66
7.3.230.0070.01516.39
7.3.210.0100.00716.55
7.3.200.0120.00919.39
7.3.190.0080.00816.64
7.3.180.0060.01016.72
7.3.170.0090.00616.55
7.3.160.0000.01616.52
7.3.120.0000.01414.90
7.2.330.0060.01216.43
7.2.320.0130.00316.69
7.2.310.0000.01716.52
7.2.300.0070.01016.52
7.2.290.0060.01216.52
7.2.00.0090.00619.26
7.1.100.0030.00918.44
7.1.70.0040.00417.38
7.1.60.0110.01419.70
7.1.50.0070.01417.01
7.1.00.0070.07322.52
7.0.200.0070.00416.76
7.0.140.0030.07322.09
7.0.100.0030.08019.92
7.0.90.0270.04019.96
7.0.80.0000.06319.88
7.0.70.0000.06019.84
7.0.60.0100.08319.98
7.0.50.0130.05020.34
7.0.40.0100.07320.10
7.0.30.0030.04320.13
7.0.20.0070.04020.04
7.0.10.0100.04320.08
7.0.00.0100.07720.09
5.6.280.0070.07021.07
5.6.250.0100.07720.75
5.6.240.0000.05020.59
5.6.230.0170.08020.68
5.6.220.0070.08320.57
5.6.210.0030.04320.47
5.6.200.0100.04721.08
5.6.190.0030.04721.11
5.6.180.0070.05721.04
5.6.170.0070.05020.95
5.6.160.0100.05020.94
5.6.150.0070.05321.01
5.6.140.0130.07721.05
5.6.130.0130.08021.07
5.6.120.0070.08021.05
5.6.110.0170.07321.00
5.6.100.0100.07321.05
5.6.90.0170.07321.07
5.6.80.0070.07320.33
5.6.70.0070.03720.38
5.6.60.0030.06320.44
5.6.50.0070.08020.48
5.6.40.0070.03720.38
5.6.30.0030.04020.41
5.6.20.0070.05720.34
5.6.10.0070.08320.38
5.6.00.0000.04720.38
5.5.380.0030.05020.35
5.5.370.0300.05720.43
5.5.360.0070.04020.42
5.5.350.0170.05720.41
5.5.340.0070.06720.80
5.5.330.0030.05020.85
5.5.320.0030.06320.88
5.5.310.0030.08020.82
5.5.300.0070.08320.88
5.5.290.0130.04020.77
5.5.280.0070.07720.83
5.5.270.0070.08020.76
5.5.260.0000.04720.82
5.5.250.0030.08320.68
5.5.240.0030.06320.18
5.5.230.0030.05320.29
5.5.220.0030.06320.17
5.5.210.0070.07320.24
5.5.200.0000.07720.22
5.5.190.0030.08320.23
5.5.180.0100.07020.13
5.5.160.0100.06020.26
5.5.150.0170.06320.13
5.5.140.0100.06320.21
5.5.130.0100.04320.27
5.5.120.0100.05020.23
5.5.110.0030.06320.13
5.5.100.0070.03320.09
5.5.90.0100.04019.94
5.5.80.0100.07019.91
5.5.70.0100.03319.93
5.5.60.0030.08320.04
5.5.50.0030.06320.04
5.5.40.0070.04319.99
5.5.30.0070.07020.00
5.5.20.0070.04320.03
5.5.10.0100.05720.01
5.5.00.0030.05020.07
5.4.450.0030.10019.27
5.4.440.0100.06019.29
5.4.430.0100.06719.35
5.4.420.0100.07019.37
5.4.410.0030.06319.32
5.4.400.0100.03319.03
5.4.390.0030.06718.94
5.4.380.0030.04319.05
5.4.370.0070.04019.03
5.4.360.0100.03318.98
5.4.350.0070.06319.03
5.4.340.0130.04719.01
5.4.320.0100.03719.10
5.4.310.0100.04318.98
5.4.300.0070.07019.05
5.4.290.0100.07319.23
5.4.280.0130.05719.00
5.4.270.0100.07019.13
5.4.260.0170.06718.85
5.4.250.0000.04319.15
5.4.240.0030.04019.02
5.4.230.0030.06318.99
5.4.220.0070.05719.02
5.4.210.0030.07719.13
5.4.200.0200.06019.04
5.4.190.0030.07319.02
5.4.180.0100.04319.05
5.4.170.0070.07018.77
5.4.160.0030.04019.10
5.4.150.0070.06718.87
5.4.140.0030.03716.38
5.4.130.0070.05716.36
5.4.120.0070.07716.28
5.4.110.0000.04016.39
5.4.100.0100.03016.22
5.4.90.0030.03716.34
5.4.80.0070.05016.15
5.4.70.0030.03316.29
5.4.60.0100.02716.42
5.4.50.0000.04716.23
5.4.40.0070.07316.29
5.4.30.0000.07316.20
5.4.20.0000.07016.40
5.4.10.0070.07716.20
5.4.00.0100.04315.81
5.3.290.0070.07014.65
5.3.280.0130.07014.56
5.3.270.0030.04014.42
5.3.260.0070.05314.59
5.3.250.0030.04014.59
5.3.240.0030.05314.59
5.3.230.0200.02014.60
5.3.220.0070.03714.54
5.3.210.0130.06314.52
5.3.200.0100.06714.54
5.3.190.0130.07014.55
5.3.180.0000.04314.49
5.3.170.0130.05014.51
5.3.160.0030.07714.57
5.3.150.0070.06714.50
5.3.140.0070.04314.54
5.3.130.0070.06714.41
5.3.120.0030.06714.50
5.3.110.0070.06714.52
5.3.100.0030.03713.89
5.3.90.0030.07713.84
5.3.80.0030.03713.96
5.3.70.0000.05314.01
5.3.60.0030.07713.77
5.3.50.0000.07013.90
5.3.40.0170.07013.89
5.3.30.0000.03713.66
5.3.20.0100.06713.68
5.3.10.0030.07013.63
5.3.00.0030.06313.49
5.2.170.0100.04011.13
5.2.160.0100.05311.09
5.2.150.0100.03010.95
5.2.140.0000.05311.13
5.2.130.0000.06311.02
5.2.120.0070.04710.91
5.2.110.0070.05010.91
5.2.100.0030.06311.08
5.2.90.0070.05711.08
5.2.80.0030.05710.88
5.2.70.0030.05311.14
5.2.60.0070.02311.09
5.2.50.0070.05311.05
5.2.40.0000.03011.03
5.2.30.0000.06710.83
5.2.20.0170.02011.03
5.2.10.0000.05310.78
5.2.00.0030.03010.63
5.1.60.0030.04710.01
5.1.50.0070.04310.00
5.1.40.0030.04310.02
5.1.30.0030.04710.41
5.1.20.0030.03310.27
5.1.10.0070.04710.11
5.1.00.0000.0539.89
5.0.50.0030.0278.70
5.0.40.0000.0378.70
5.0.30.0030.0578.70
5.0.20.0000.0308.70
5.0.10.0030.0278.70
5.0.00.0000.0638.70
4.4.90.0030.0338.70
4.4.80.0030.0378.70
4.4.70.0000.0378.70
4.4.60.0030.0338.70
4.4.50.0000.0238.70
4.4.40.0030.0508.70
4.4.30.0000.0208.70
4.4.20.0030.0338.70
4.4.10.0000.0308.70
4.4.00.0030.0238.70
4.3.110.0000.0278.70
4.3.100.0000.0178.70
4.3.90.0000.0208.70
4.3.80.0000.0478.70
4.3.70.0030.0378.70
4.3.60.0000.0378.70
4.3.50.0030.0178.70
4.3.40.0000.0238.70
4.3.30.0000.0208.70
4.3.20.0000.0338.70
4.3.10.0000.0378.70
4.3.00.0100.0178.70

preferences:
63.34 ms | 401 KiB | 5 Q