3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'hello, [how] don\'t remove this [are] you'; echo preg_replace('#\s*\[.+\]\s*#', ' ', $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)
8.3.70.0120.00316.38
8.3.60.0110.00416.50
8.3.50.0140.00616.62
8.3.40.0040.01118.95
8.3.30.0070.00718.79
8.3.20.0080.00018.94
8.3.10.0040.00418.90
8.3.00.0120.00019.38
8.2.180.0180.00316.63
8.2.170.0060.00822.96
8.2.160.0090.00621.14
8.2.150.0090.00924.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0050.00320.79
8.2.110.0090.00022.34
8.2.100.0040.00717.82
8.2.90.0090.00019.33
8.2.80.0060.00319.39
8.2.70.0060.00317.88
8.2.60.0080.00017.93
8.2.50.0080.00019.60
8.2.40.0000.00818.03
8.2.30.0060.00618.11
8.2.20.0060.00317.79
8.2.10.0040.00417.68
8.2.00.0000.00717.76
8.1.280.0170.00325.92
8.1.270.0090.00024.66
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0030.00623.98
8.1.230.0080.00421.04
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0070.00317.35
8.1.190.0040.00417.27
8.1.180.0000.00818.10
8.1.170.0050.00318.71
8.1.160.0050.00218.77
8.1.150.0040.00418.74
8.1.140.0040.00417.52
8.1.130.0030.00317.82
8.1.120.0050.00317.46
8.1.110.0000.00717.46
8.1.100.0030.00317.55
8.1.90.0100.00017.55
8.1.80.0000.00717.45
8.1.70.0070.00017.52
8.1.60.0040.00417.72
8.1.50.0000.00817.57
8.1.40.0040.00417.57
8.1.30.0000.00717.71
8.1.20.0040.00417.82
8.1.10.0030.00617.69
8.1.00.0090.00017.64
8.0.300.0060.00319.89
8.0.290.0000.00716.75
8.0.280.0030.00318.45
8.0.270.0000.00817.28
8.0.260.0000.00616.96
8.0.250.0030.00517.06
8.0.240.0050.00317.06
8.0.230.0000.00717.06
8.0.220.0000.00717.04
8.0.210.0070.00016.98
8.0.200.0050.00217.04
8.0.190.0040.00416.92
8.0.180.0040.00417.06
8.0.170.0030.00516.95
8.0.160.0050.00316.99
8.0.150.0060.00316.92
8.0.140.0000.00816.98
8.0.130.0030.00313.49
8.0.120.0060.00316.89
8.0.110.0050.00316.93
8.0.100.0060.00316.80
8.0.90.0040.00416.88
8.0.80.0040.01116.98
8.0.70.0000.00817.00
8.0.60.0000.00816.91
8.0.50.0040.00417.04
8.0.30.0150.00917.41
8.0.20.0140.02117.26
8.0.10.0000.00716.97
8.0.00.0100.01316.88
7.4.330.0000.00513.13
7.4.320.0000.00716.68
7.4.300.0050.00216.73
7.4.290.0060.00316.66
7.4.280.0030.00316.72
7.4.270.0050.00316.68
7.4.260.0000.00513.41
7.4.250.0070.00016.68
7.4.240.0050.00216.73
7.4.230.0030.00316.56
7.4.220.0060.01316.74
7.4.210.0120.00216.63
7.4.200.0060.00316.84
7.4.190.0040.00416.91
7.4.160.0030.01416.69
7.4.150.0120.00616.75
7.4.140.0090.01216.60
7.4.130.0120.00616.57
7.4.120.0080.00816.60
7.4.110.0160.00316.53
7.4.100.0150.01116.50
7.4.90.0060.01216.83
7.4.80.0000.01719.39
7.4.70.0070.01016.41
7.4.60.0090.00616.61
7.4.50.0060.00216.58
7.4.40.0070.00616.38
7.4.30.0060.00916.87
7.4.00.0080.00815.08
7.3.330.0070.00013.21
7.3.320.0000.00513.08
7.3.310.0030.00316.43
7.3.300.0060.00016.36
7.3.290.0080.00816.24
7.3.280.0020.01416.32
7.3.270.0060.01016.70
7.3.260.0130.00316.40
7.3.250.0100.00816.68
7.3.240.0080.01616.71
7.3.230.0140.00716.60
7.3.210.0040.01216.38
7.3.200.0130.00916.34
7.3.190.0070.01016.53
7.3.180.0000.01516.38
7.3.170.0070.01016.17
7.3.160.0080.00816.42
7.3.120.0050.00914.95
7.3.110.0100.01014.86
7.3.100.0040.00814.60
7.3.90.0060.00314.89
7.3.80.0030.00914.61
7.3.70.0070.00715.09
7.3.60.0030.01414.73
7.3.50.0000.01714.94
7.3.40.0060.00814.98
7.3.30.0110.00414.92
7.3.20.0000.01516.60
7.3.10.0030.01416.75
7.3.00.0050.00516.69
7.2.330.0130.00716.67
7.2.320.0090.01216.72
7.2.310.0100.01316.55
7.2.300.0110.00716.66
7.2.290.0130.00616.44
7.2.250.0030.01314.92
7.2.240.0070.01314.89
7.2.230.0000.01015.08
7.2.220.0030.00715.05
7.2.210.0030.01015.06
7.2.200.0000.01015.18
7.2.190.0030.01314.97
7.2.180.0060.00915.02
7.2.170.0060.00615.02
7.2.00.0000.01519.55
7.1.330.0070.00715.96
7.1.320.0070.00715.71
7.1.310.0070.00716.13
7.1.300.0030.01015.97
7.1.290.0070.01016.02
7.1.280.0030.00815.92
7.1.270.0000.01216.06
7.1.260.0080.00815.79
7.1.100.0080.00318.52
7.1.70.0040.00717.08
7.1.60.0090.01519.40
7.1.50.0090.01217.09
7.1.00.0030.07722.52
7.0.200.0250.00614.71
7.0.140.0100.06722.08
7.0.120.0030.07322.04
7.0.110.0030.09019.95
7.0.100.0130.08020.00
7.0.90.0130.08019.88
7.0.80.0130.07319.87
7.0.70.0130.03719.95
7.0.60.0200.07320.00
7.0.50.0070.08320.47
7.0.40.0070.07720.26
7.0.30.0130.06320.27
7.0.20.0230.06320.03
7.0.10.0100.06320.21
7.0.00.0100.08320.14
5.6.280.0100.06721.09
5.6.260.0030.08320.66
5.6.250.0070.06720.61
5.6.240.0130.07720.64
5.6.230.0070.08020.48
5.6.220.0100.08020.59
5.6.210.0070.08320.55
5.6.200.0200.03721.07
5.6.190.0030.08321.21
5.6.180.0070.08320.95
5.6.170.0070.08320.98
5.6.160.0070.05021.13
5.6.150.0030.08321.26
5.6.140.0030.07321.07
5.6.130.0070.07721.11
5.6.120.0100.08720.95
5.6.110.0070.07721.23
5.6.100.0100.08021.07
5.6.90.0200.06321.09
5.6.80.0000.08720.33
5.6.70.0070.06320.30
5.6.60.0070.07320.39
5.6.50.0030.08320.49
5.6.40.0170.07020.50
5.6.30.0200.06020.54
5.6.20.0130.07320.30
5.6.10.0070.07320.46
5.6.00.0070.07720.45
5.5.380.0070.07320.46
5.5.370.0070.08020.31
5.5.360.0130.08020.39
5.5.350.0100.07720.40
5.5.340.0100.07720.78
5.5.330.0130.06720.78
5.5.320.0100.08720.91
5.5.310.0170.06720.69
5.5.300.0000.08720.75
5.5.290.0030.08020.90
5.5.280.0100.08320.93
5.5.270.0200.07320.93
5.5.260.0130.07720.91
5.5.250.0030.05320.61
5.5.240.0070.07720.25
5.5.230.0070.06320.06
5.5.220.0130.07320.19
5.5.210.0100.03320.27
5.5.200.0070.08020.35
5.5.190.0100.08020.31
5.5.180.0000.05320.33
5.5.160.0030.06020.31
5.5.150.0070.08320.09
5.5.140.0130.07720.35
5.5.130.0100.05720.14
5.5.120.0100.08020.38
5.5.110.0030.04320.08
5.5.100.0170.04020.08
5.5.90.0070.08020.22
5.5.80.0030.07720.24
5.5.70.0100.05020.13
5.5.60.0070.04320.21
5.5.50.0070.07720.23
5.5.40.0170.07020.23
5.5.30.0070.07719.96
5.5.20.0030.06320.20
5.5.10.0070.08020.09
5.5.00.0200.06320.21
5.4.450.0070.08019.36
5.4.440.0030.08319.44
5.4.430.0030.08319.27
5.4.420.0070.07719.28
5.4.410.0170.06719.38
5.4.400.0070.08019.12
5.4.390.0100.06019.10
5.4.380.0170.06719.03
5.4.370.0030.08319.12
5.4.360.0030.08019.12
5.4.350.0100.06719.12
5.4.340.0070.08019.03
5.4.320.0070.04319.00
5.4.310.0100.07018.95
5.4.300.0070.06719.10
5.4.290.0030.07719.00
5.4.280.0030.07719.19
5.4.270.0130.06019.03
5.4.260.0100.07019.24
5.4.250.0030.05019.26
5.4.240.0070.07318.94
5.4.230.0100.04319.02
5.4.220.0030.05019.11
5.4.210.0130.04718.95
5.4.200.0130.05719.27
5.4.190.0130.03719.02
5.4.180.0030.08319.11
5.4.170.0030.07719.24
5.4.160.0100.07319.10
5.4.150.0070.07719.25
5.4.140.0070.07316.45
5.4.130.0070.05716.42
5.4.120.0070.07016.15
5.4.110.0070.07016.40
5.4.100.0000.08016.48
5.4.90.0070.05316.48
5.4.80.0070.03316.17
5.4.70.0070.03316.34
5.4.60.0000.04016.55
5.4.50.0100.03716.26
5.4.40.0000.04316.54
5.4.30.0000.03716.30
5.4.20.0030.03316.48
5.4.10.0030.03716.32
5.4.00.0100.03015.66
5.3.290.0070.07714.57
5.3.280.0130.07014.60
5.3.270.0130.06314.50
5.3.260.0100.04314.60
5.3.250.0030.08014.46
5.3.240.0100.04714.54
5.3.230.0100.07314.52
5.3.220.0070.06314.50
5.3.210.0100.07314.66
5.3.200.0030.08014.50
5.3.190.0000.05714.46
5.3.180.0000.06714.62
5.3.170.0030.03714.55
5.3.160.0000.04014.57
5.3.150.0030.04714.35
5.3.140.0070.03314.39
5.3.130.0030.03714.40
5.3.120.0000.04014.40
5.3.110.0030.03714.43
5.3.100.0030.03714.13
5.3.90.0030.04013.94
5.3.80.0000.04313.84
5.3.70.0000.03713.80
5.3.60.0070.03714.05
5.3.50.0030.03713.86
5.3.40.0030.03713.95
5.3.30.0000.04713.96
5.3.20.0000.04013.57
5.3.10.0030.03313.57
5.3.00.0070.07013.42
5.2.170.0100.02311.80
5.2.160.0000.03311.80
5.2.150.0070.02711.80
5.2.140.0070.05011.80
5.2.130.0070.02311.80
5.2.120.0030.04311.80
5.2.110.0000.04711.80
5.2.100.0030.03011.80
5.2.90.0100.02311.80
5.2.80.0000.03011.80
5.2.70.0070.03011.80
5.2.60.0070.02711.80
5.2.50.0170.01711.80
5.2.40.0030.02711.80
5.2.30.0000.03011.80
5.2.20.0000.03011.80
5.2.10.0030.02711.80
5.2.00.0030.02711.80
5.1.60.0030.02311.80
5.1.50.0070.02011.80
5.1.40.0100.01711.80
5.1.30.0000.02711.80
5.1.20.0030.03711.80
5.1.10.0070.02011.80
5.1.00.0070.02011.80
5.0.50.0000.02311.80
5.0.40.0000.02011.80
5.0.30.0030.02711.80
5.0.20.0000.02011.80
5.0.10.0030.01711.80
5.0.00.0000.03011.80
4.4.90.0000.01711.80
4.4.80.0000.01711.80
4.4.70.0000.01711.80
4.4.60.0000.02311.80
4.4.50.0000.02011.80
4.4.40.0000.02311.80
4.4.30.0030.01311.80
4.4.20.0030.02011.80
4.4.10.0000.02711.80
4.4.00.0030.03011.80
4.3.110.0000.01711.80
4.3.100.0000.01311.80
4.3.90.0000.01311.80
4.3.80.0130.03011.80
4.3.70.0030.02011.80
4.3.60.0000.03311.80
4.3.50.0030.01311.80
4.3.40.0030.02011.80
4.3.30.0000.01311.80
4.3.20.0030.01311.80
4.3.10.0000.03711.80
4.3.00.0000.01311.80

preferences:
65.6 ms | 401 KiB | 5 Q