3v4l.org

run code in 300+ PHP versions simultaneously
<?php // remove duplicated spaces into single spaces but persist special spaces like the non-breaking-space $normalized = " \xC2\xA0 "; $normalized = preg_replace("/([ \xC2\xA0])?\\s+/u", '$1 ', $normalized); $normalized = preg_replace('/([ \xC2\xA0]) /u', '$1', $normalized); var_dump($normalized, bin2hex($normalized));

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)
8.3.60.0100.00716.63
8.3.50.0100.01018.33
8.3.40.0090.00918.83
8.3.30.0070.00719.04
8.3.20.0070.00020.21
8.3.10.0080.00021.78
8.3.00.0000.00819.38
8.2.180.0070.01416.88
8.2.170.0120.00322.96
8.2.160.0070.00720.49
8.2.150.0040.00424.18
8.2.140.0040.00724.66
8.2.130.0040.00426.16
8.2.120.0080.00019.50
8.2.110.0060.00322.24
8.2.100.0080.00417.88
8.2.90.0000.00819.17
8.2.80.0030.00617.97
8.2.70.0030.00617.63
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0040.00418.16
8.2.30.0070.00018.14
8.2.20.0040.00417.88
8.2.10.0050.00318.02
8.2.00.0040.00418.02
8.1.280.0060.01125.92
8.1.270.0090.00020.43
8.1.260.0030.00626.35
8.1.250.0050.00228.09
8.1.240.0060.00320.61
8.1.230.0110.00022.78
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.38
8.1.180.0000.00818.10
8.1.170.0060.00320.41
8.1.160.0050.00321.89
8.1.150.0000.00718.81
8.1.140.0000.00817.71
8.1.130.0000.00817.90
8.1.120.0040.00417.52
8.1.110.0080.00017.62
8.1.100.0030.00517.43
8.1.90.0040.00417.48
8.1.80.0000.00817.47
8.1.70.0000.00717.49
8.1.60.0050.00517.65
8.1.50.0030.00517.66
8.1.40.0030.00517.66
8.1.30.0040.00417.65
8.1.20.0000.00817.57
8.1.10.0040.00417.48
8.1.00.0000.00917.46
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0070.00018.32
8.0.270.0000.00717.28
8.0.260.0040.00417.13
8.0.250.0030.00317.09
8.0.240.0060.00017.16
8.0.230.0030.00317.09
8.0.220.0000.00717.16
8.0.210.0080.00017.07
8.0.200.0030.00317.14
8.0.190.0040.00417.10
8.0.180.0000.00717.07
8.0.170.0040.00417.03
8.0.160.0040.00417.15
8.0.150.0040.00416.99
8.0.140.0000.00716.98
8.0.130.0030.00313.47
8.0.120.0000.00817.05
8.0.110.0000.00717.11
8.0.100.0000.00816.97
8.0.90.0000.00717.16
8.0.80.0060.01717.02
8.0.70.0000.00816.98
8.0.60.0000.00716.90
8.0.50.0030.00517.10
8.0.30.0160.00717.20
8.0.20.0070.01417.40
8.0.10.0000.00717.00
8.0.00.0120.00916.93
7.4.330.0030.00315.16
7.4.320.0030.00316.61
7.4.300.0060.00016.79
7.4.290.0040.00416.82
7.4.280.0080.00316.71
7.4.270.0000.00716.72
7.4.260.0050.00316.67
7.4.250.0040.00416.60
7.4.240.0040.00316.72
7.4.230.0070.00016.46
7.4.220.0060.01216.63
7.4.210.0090.00816.83
7.4.200.0040.00416.83
7.4.160.0120.00316.72
7.4.150.0090.00917.40
7.4.140.0150.00517.86
7.4.130.0100.00616.56
7.4.120.0150.00516.68
7.4.110.0090.01516.75
7.4.100.0070.01116.62
7.4.90.0100.01316.53
7.4.80.0160.00919.39
7.4.70.0030.01516.67
7.4.60.0030.01316.55
7.4.50.0030.00716.63
7.4.40.0090.00916.62
7.4.30.0070.01016.47
7.4.00.0070.00715.23
7.3.330.0030.00313.23
7.3.320.0130.00013.24
7.3.310.0070.00016.39
7.3.300.0050.00216.19
7.3.290.0030.00316.23
7.3.280.0070.00916.30
7.3.270.0130.00717.40
7.3.260.0110.00516.42
7.3.250.0090.01116.61
7.3.240.0120.00616.45
7.3.230.0040.01416.39
7.3.210.0090.00916.68
7.3.200.0080.00916.77
7.3.190.0080.00816.40
7.3.180.0120.00916.70
7.3.170.0090.00616.49
7.3.160.0080.01116.24
7.3.120.0100.00314.63
7.3.110.0090.00614.86
7.3.100.0080.00614.55
7.3.90.0100.00614.77
7.3.80.0080.00614.45
7.3.70.0040.01514.64
7.3.60.0090.00614.70
7.3.50.0060.00614.32
7.3.40.0070.00714.64
7.3.30.0100.00714.52
7.3.20.0110.00716.74
7.3.10.0040.01316.67
7.3.00.0130.00316.80
7.2.330.0120.00716.57
7.2.320.0090.00916.70
7.2.310.0090.00816.45
7.2.300.0070.01016.80
7.2.290.0150.01216.76
7.2.240.0040.00814.86
7.2.230.0120.00315.16
7.2.220.0100.00614.93
7.2.210.0100.00714.96
7.2.200.0060.01215.10
7.2.190.0130.00314.88
7.2.180.0130.00315.05
7.2.170.0100.00714.80
7.2.160.0030.01314.82
7.2.150.0030.00916.49
7.2.140.0160.00716.66
7.2.130.0060.01216.54
7.2.120.0070.01016.89
7.2.110.0070.01016.64
7.2.100.0040.01116.65
7.2.90.0040.01316.79
7.2.80.0110.01117.02
7.2.70.0130.00716.61
7.2.60.0050.01116.91
7.2.50.0080.01116.91
7.2.40.0100.01316.87
7.2.30.0110.00716.75
7.2.20.0060.01216.55
7.2.10.0140.00316.50
7.2.00.0050.01018.11
7.1.330.0000.01415.72
7.1.320.0030.01015.36
7.1.310.0130.00015.62
7.1.300.0120.00615.76
7.1.290.0090.00615.86
7.1.280.0110.00415.55
7.1.270.0040.01115.62
7.1.260.0070.01015.86
7.1.250.0060.00615.57
7.1.200.0070.00416.05
7.1.100.0120.00918.18
7.1.70.0080.00017.27
7.1.60.0070.01019.50
7.1.50.0040.02116.91
7.1.00.0070.07022.38
7.0.200.0110.00016.71
7.0.140.0070.04322.10
7.0.60.0070.05319.97
7.0.50.0070.08017.88
7.0.40.0030.05019.97
7.0.30.0300.05020.18
7.0.20.0270.08020.22
7.0.10.0300.08020.20
7.0.00.0070.07020.31
5.6.280.0070.07021.09
5.6.210.0070.08720.71
5.6.200.0130.03318.09
5.6.190.0230.05720.39
5.6.180.0400.05020.65
5.6.170.0300.05320.39
5.6.160.0070.04020.52
5.6.150.0030.04318.18
5.6.140.0000.06718.18
5.6.130.0000.04318.21
5.6.120.0030.06721.12
5.6.110.0200.07021.04
5.6.100.0030.09321.00
5.6.90.0030.08721.00
5.6.80.0130.07720.53
5.6.70.0170.03720.52
5.5.350.0170.04720.32
5.5.340.0070.07718.02
5.5.330.0170.07320.23
5.5.320.0130.07320.23
5.5.310.0330.07320.34
5.5.300.0000.04717.87
5.5.290.0070.03717.88
5.5.280.0000.05020.87
5.5.270.0030.05320.85
5.5.260.0030.08020.63
5.5.250.0030.04020.68
5.5.240.0000.05320.14
5.4.450.0270.05719.64
5.4.440.1000.07019.27
5.4.430.1100.04719.10
5.4.420.0730.05719.11
5.4.410.0130.06018.97
5.4.400.0370.05018.83
5.4.390.0200.06718.50
5.4.380.0300.05318.50
5.4.370.0330.05718.56
5.4.360.0370.05318.53
5.4.350.0530.04018.68
5.4.340.0270.07318.68
5.4.320.0300.06018.71
5.4.310.0470.06318.61
5.4.300.0400.07018.56
5.4.290.0500.04018.70
5.4.280.0330.06318.59
5.4.270.0470.04318.62
5.4.260.0230.06718.60
5.4.250.0400.05718.82
5.4.240.0470.04318.58
5.4.230.0270.05718.59
5.4.220.0330.06318.64
5.4.210.0530.05718.51
5.4.200.0330.06016.74
5.4.190.0300.05718.56
5.4.180.0330.06318.70
5.4.170.0370.06318.50
5.4.160.0430.05718.46
5.4.150.0430.05718.66
5.4.140.0400.05716.30
5.4.130.0330.05016.16
5.4.120.0330.05316.13
5.4.110.0430.04016.23
5.4.100.0300.06016.18
5.4.90.0370.05716.27
5.4.80.0430.04316.20
5.4.70.0300.05316.14
5.4.60.0400.05016.19
5.4.50.0330.05716.14
5.4.40.0470.06716.19
5.4.30.0430.04316.00
5.4.20.0330.05316.11
5.4.10.0400.05016.02
5.4.00.0370.04715.60
5.3.290.0400.05014.83
5.3.280.0370.05014.62
5.3.270.0500.05314.68
5.3.260.0300.05714.58
5.3.250.0330.06014.55
5.3.240.0570.05714.58
5.3.230.0530.04314.62
5.3.220.0200.07314.63
5.3.210.0330.06714.52
5.3.200.0270.06014.63
5.3.190.0330.06014.52
5.3.180.0400.05314.54
5.3.170.0500.05714.55
5.3.160.0500.06714.50
5.3.150.0500.06714.52
5.3.140.0470.04014.61
5.3.130.0370.05014.52
5.3.120.0330.06014.52
5.3.110.0270.06014.52
5.3.100.0530.06314.05
5.3.90.0530.06313.93
5.3.80.0600.05313.93
5.3.70.0500.05313.99
5.3.60.0430.05013.95
5.3.50.0400.05013.88
5.3.40.0470.04314.10
5.3.30.0270.07014.00
5.3.20.0600.05313.84
5.3.10.0330.05713.60
5.3.00.0400.04713.61
5.2.170.0330.03711.08
5.2.160.0470.04711.05
5.2.150.0470.04311.13
5.2.140.0330.04311.21
5.2.130.0270.05011.23
5.2.120.0270.03711.05
5.2.110.0270.04711.05
5.2.100.0270.04311.13
5.2.90.0330.03711.14
5.2.80.0200.05011.14
5.2.70.0300.04711.14
5.2.60.0400.04011.12
5.2.50.0370.04311.00
5.2.40.0170.04710.91
5.2.30.0270.04311.00
5.2.20.0200.04311.18
5.2.10.0170.05010.91
5.2.00.0170.04710.81
5.1.60.0300.04010.17
5.1.50.0330.03710.05
5.1.40.0270.0479.99
5.1.30.0200.04310.36
5.1.20.0200.04310.56
5.1.10.0270.04710.18
5.1.00.0230.06010.08
5.0.50.0100.0378.57
5.0.40.0230.0308.44
5.0.30.0130.0478.31
5.0.20.0100.0338.26
5.0.10.0130.0278.20
5.0.00.0130.0438.14
4.4.90.0130.0206.29
4.4.80.0100.0236.29
4.4.70.0100.0236.29
4.4.60.0200.0176.29
4.4.50.0130.0276.29
4.4.40.0130.0436.29
4.4.30.0130.0276.29
4.4.20.0130.0306.29
4.4.10.0170.0306.29
4.4.00.0200.0406.29
4.3.110.0230.0276.29
4.3.100.0170.0236.29
4.3.90.0130.0206.29
4.3.80.0070.0406.29
4.3.70.0070.0236.29
4.3.60.0130.0206.29
4.3.50.0100.0236.29
4.3.40.0130.0306.29
4.3.30.0070.0236.29
4.3.20.0030.0276.29
4.3.10.0130.0176.29
4.3.00.0130.0206.95

preferences:
48.69 ms | 400 KiB | 5 Q