3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = ' The quick brown fox jumped over the lazy dog.'; $patterns = array(); $patterns[0] = $x; $replacements = array(); $replacements[0] = ''; echo preg_replace('/^\s*/', '', $string); ?>

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)
8.3.60.0120.00318.66
8.3.50.0140.00418.33
8.3.40.0120.00319.04
8.3.30.0120.00319.06
8.3.20.0040.00420.16
8.3.10.0050.00321.49
8.3.00.0070.00319.02
8.2.180.0130.00918.56
8.2.170.0070.00722.96
8.2.160.0070.01022.20
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00319.95
8.2.110.0070.00321.89
8.2.100.0060.00617.75
8.2.90.0070.00319.43
8.2.80.0060.00317.97
8.2.70.0000.00917.75
8.2.60.0000.00918.03
8.2.50.0000.00818.07
8.2.40.0000.00818.03
8.2.30.0000.00718.13
8.2.20.0070.00018.01
8.2.10.0000.00918.13
8.2.00.0050.00317.88
8.1.280.0120.00625.92
8.1.270.0040.00418.84
8.1.260.0070.00026.35
8.1.250.0110.00328.09
8.1.240.0060.00323.92
8.1.230.0080.00320.94
8.1.220.0050.00317.79
8.1.210.0040.00418.77
8.1.200.0130.00017.50
8.1.190.0060.00317.47
8.1.180.0040.00418.10
8.1.170.0000.00820.31
8.1.160.0000.00821.93
8.1.150.0000.00718.89
8.1.140.0000.00817.54
8.1.130.0000.00617.89
8.1.120.0000.00717.55
8.1.110.0030.00617.52
8.1.100.0040.00417.53
8.1.90.0000.00717.57
8.1.80.0000.00817.57
8.1.70.0000.00717.41
8.1.60.0040.00417.66
8.1.50.0040.00417.48
8.1.40.0000.00717.62
8.1.30.0080.00017.64
8.1.20.0040.00417.67
8.1.10.0000.00717.70
8.1.00.0040.00417.69
8.0.300.0000.00718.77
8.0.290.0060.00316.88
8.0.280.0030.00318.45
8.0.270.0070.00017.14
8.0.260.0040.00417.28
8.0.250.0000.00717.05
8.0.240.0000.00617.18
8.0.230.0030.00316.98
8.0.220.0040.00416.89
8.0.210.0030.00317.01
8.0.200.0040.00417.06
8.0.190.0040.00417.13
8.0.180.0040.00416.94
8.0.170.0000.00817.09
8.0.160.0070.00016.96
8.0.150.0000.00716.88
8.0.140.0040.00416.99
8.0.130.0060.00013.44
8.0.120.0080.00017.02
8.0.110.0000.00816.99
8.0.100.0000.00817.06
8.0.90.0050.00316.89
8.0.80.0060.01316.98
8.0.70.0000.00817.05
8.0.60.0040.00416.86
8.0.50.0040.00417.08
8.0.30.0150.00617.18
8.0.20.0120.00617.40
8.0.10.0040.00417.14
8.0.00.0130.00516.73
7.4.330.0050.00015.05
7.4.320.0040.00416.63
7.4.300.0030.00316.78
7.4.290.0030.00316.60
7.4.280.0050.00316.74
7.4.270.0000.00716.64
7.4.260.0030.00316.64
7.4.250.0000.00816.54
7.4.240.0040.00416.71
7.4.230.0070.00016.70
7.4.220.0040.01316.64
7.4.210.0040.01116.63
7.4.200.0000.00816.64
7.4.160.0120.00316.57
7.4.150.0220.00417.40
7.4.140.0080.01217.86
7.4.130.0060.01016.64
7.4.120.0120.00716.71
7.4.110.0130.01016.59
7.4.100.0070.01116.82
7.4.90.0070.01116.75
7.4.80.0060.00916.71
7.4.70.0090.01316.64
7.4.60.0100.00616.66
7.4.50.0000.00816.71
7.4.40.0030.01216.55
7.4.30.0060.01716.82
7.4.00.0060.01015.03
7.3.330.0030.00313.26
7.3.320.0040.01113.38
7.3.310.0080.00016.53
7.3.300.0070.00016.46
7.3.290.0070.00016.37
7.3.280.0100.00716.42
7.3.270.0180.01217.40
7.3.260.0030.01416.58
7.3.250.0130.00716.46
7.3.240.0120.00916.52
7.3.230.0080.01216.47
7.3.210.0120.00416.65
7.3.200.0150.00919.39
7.3.190.0070.01016.58
7.3.180.0110.01116.60
7.3.170.0080.01316.38
7.3.160.0160.00616.56
7.3.120.0100.00714.88
7.3.110.0000.01715.24
7.3.100.0100.00714.84
7.3.90.0030.01014.80
7.3.80.0080.00814.98
7.3.70.0040.00815.02
7.3.60.0030.01315.25
7.3.50.0070.00314.91
7.3.40.0000.01415.00
7.3.30.0090.00615.07
7.3.20.0030.00616.93
7.3.10.0030.00616.98
7.3.00.0030.01016.77
7.2.330.0070.01016.66
7.2.320.0030.01316.78
7.2.310.0110.00716.50
7.2.300.0110.00616.72
7.2.290.0090.01316.63
7.2.250.0100.00714.80
7.2.240.0000.01815.03
7.2.230.0090.00615.36
7.2.220.0030.00914.85
7.2.210.0040.01114.91
7.2.200.0060.00315.17
7.2.190.0110.00315.23
7.2.180.0070.00715.11
7.2.170.0000.01515.19
7.2.00.0070.01119.63
7.1.330.0030.01216.07
7.1.320.0100.00715.94
7.1.310.0080.00415.97
7.1.300.0060.00915.89
7.1.290.0070.00315.98
7.1.280.0000.01515.93
7.1.270.0030.00616.09
7.1.260.0060.00615.80
7.1.100.0000.01218.19
7.1.70.0030.01017.54
7.1.60.0070.01819.46
7.1.50.0090.01216.77
7.1.00.0070.07322.35
7.0.200.0140.00714.98
7.0.140.0070.04721.95
7.0.60.0070.08719.82
7.0.50.0100.06317.88
7.0.40.0000.05320.42
7.0.30.0300.08020.15
7.0.20.0370.06020.18
7.0.10.0070.06020.02
7.0.00.0200.07720.19
5.6.280.0030.06720.99
5.6.210.0000.05720.66
5.6.200.0170.04018.16
5.6.190.0030.05320.43
5.6.180.0400.06020.39
5.6.170.0230.03320.71
5.6.160.0170.04720.47
5.6.150.0100.05718.22
5.6.140.0030.09018.22
5.6.130.0070.07318.18
5.6.120.0030.05321.06
5.6.110.0130.08021.10
5.6.100.0100.07720.96
5.6.90.0100.07720.99
5.6.80.0170.07320.40
5.5.350.0300.06720.42
5.5.340.0000.08717.92
5.5.330.0030.05720.12
5.5.320.0130.07020.50
5.5.310.0330.07020.33
5.5.300.0070.08317.89
5.5.290.0100.07017.88
5.5.280.0100.07020.72
5.5.270.0170.04020.88
5.5.260.0070.08020.86
5.5.250.0170.06720.64
5.5.240.0170.08320.06
5.4.450.0630.05719.57
5.4.440.0700.07019.54
5.4.430.0100.05319.47
5.4.420.1130.06719.57
5.4.410.0970.06019.12
5.4.400.1200.03719.24
5.4.390.0030.08018.69
5.4.380.0270.06018.72
5.4.370.0170.06718.59
5.4.360.0230.05318.56
5.4.350.0170.07018.77
5.4.340.0170.07018.45
5.4.320.0270.04718.48
5.4.310.0130.05718.65
5.4.300.0030.06318.58
5.4.290.0170.04718.49
5.4.280.0200.04718.77
5.4.270.0170.05018.71
5.4.260.0130.06318.64
5.4.250.0130.05318.62
5.4.240.0170.05318.64
5.4.230.0170.04718.70
5.4.220.0200.05018.54
5.4.210.0170.05718.50
5.4.200.0070.05716.50
5.4.190.0130.05018.72
5.4.180.0170.05318.56
5.4.170.0100.05318.66
5.4.160.0200.04318.49
5.4.150.0270.04018.46
5.4.140.0100.05716.17
5.4.130.0130.05016.28
5.4.120.0030.06016.05
5.4.110.0230.06316.30
5.4.100.0100.08016.27
5.4.90.0200.05716.35
5.4.80.0130.06716.26
5.4.70.0200.04716.13
5.4.60.0200.04716.04
5.4.50.0200.04316.01
5.4.40.0170.05016.21
5.4.30.0270.03716.19
5.4.20.0100.06316.04
5.4.10.0070.06716.12
5.4.00.0130.04715.62
5.3.290.0130.05314.74
5.3.280.0130.05014.57
5.3.270.0230.06314.61
5.3.260.0170.07014.54
5.3.250.0130.07014.63
5.3.240.0130.05314.58
5.3.230.0130.05714.56
5.3.220.0200.04714.56
5.3.210.0170.05014.66
5.3.200.0200.05014.65
5.3.190.0200.04714.58
5.3.180.0170.05014.55
5.3.170.0100.05314.54
5.3.160.0100.05314.64
5.3.150.0070.06314.49
5.3.140.0170.07314.50
5.3.130.0300.06014.46
5.3.120.0170.05314.60
5.3.110.0170.05714.53
5.3.100.0130.05313.93
5.3.90.0100.05713.95
5.3.80.0230.04713.93
5.3.70.0070.06014.01
5.3.60.0170.04714.00
5.3.50.0100.05314.02
5.3.40.0270.05713.89
5.3.30.0130.05313.89
5.3.20.0100.05313.58
5.3.10.0070.05713.68
5.3.00.0130.05013.56
5.2.170.0170.03711.20
5.2.160.0170.03711.18
5.2.150.0170.03711.20
5.2.140.0130.04011.14
5.2.130.0070.04311.02
5.2.120.0200.04011.13
5.2.110.0100.04711.02
5.2.100.0170.03311.09
5.2.90.0170.03711.16
5.2.80.0100.04311.08
5.2.70.0100.04311.07
5.2.60.0100.04311.02
5.2.50.0170.03711.00
5.2.40.0070.05010.95
5.2.30.0230.03710.95
5.2.20.0100.04010.95
5.2.10.0100.04010.91
5.2.00.0200.04010.76
5.1.60.0030.04010.14
5.1.50.0000.0439.96
5.1.40.0130.03010.04
5.1.30.0100.05010.43
5.1.20.0170.04010.38
5.1.10.0130.03010.04
5.1.00.0170.04310.06
5.0.50.0070.0338.68
5.0.40.0070.0278.45
5.0.30.0030.0438.22
5.0.20.0030.0308.32
5.0.10.0030.0308.26
5.0.00.0070.0478.17
4.4.90.0030.0236.97
4.4.80.0000.0276.97
4.4.70.0070.0206.97
4.4.60.0100.0176.97
4.4.50.0070.0206.97
4.4.40.0070.0336.97
4.4.30.0070.0206.97
4.4.20.0030.0236.97
4.4.10.0000.0276.97
4.4.00.0030.0376.97
4.3.110.0030.0276.97
4.3.100.0070.0206.97
4.3.90.0030.0236.97
4.3.80.0100.0306.97
4.3.70.0100.0176.97
4.3.60.0100.0206.97
4.3.50.0130.0136.97
4.3.40.0130.0276.97
4.3.30.0070.0276.97
4.3.20.0030.0236.97
4.3.10.0030.0206.97
4.3.00.0270.01714.42

preferences:
59.03 ms | 400 KiB | 5 Q