3v4l.org

run code in 300+ PHP versions simultaneously
<?php $limit = 8434; $string = 'a'; for ( $i = 0; $i <= $limit; $i++ ) { $string .= 'a'; } echo strlen($string)."\n"; $str2=preg_replace('#(.)*#', '', $string); echo 'done';

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)
8.3.40.0200.00319.13
8.3.30.0110.01119.12
8.3.20.0060.00320.38
8.3.10.0040.00423.91
8.3.00.0030.00619.94
8.2.170.0110.01122.96
8.2.160.0100.01020.68
8.2.150.0000.00924.18
8.2.140.0120.00624.66
8.2.130.0090.00026.16
8.2.120.0070.00317.88
8.2.110.0040.00721.23
8.2.100.0000.01218.21
8.2.90.0050.00319.42
8.2.80.0000.00818.00
8.2.70.0060.00318.13
8.2.60.0040.00418.30
8.2.50.0060.00318.07
8.2.40.0050.00319.60
8.2.30.0070.00018.39
8.2.20.0030.00618.16
8.2.10.0050.00318.49
8.2.00.0040.00418.53
8.1.270.0100.01020.61
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0070.01024.17
8.1.230.0090.00317.89
8.1.220.0000.00918.03
8.1.210.0070.00418.77
8.1.200.0060.00317.85
8.1.190.0030.00517.72
8.1.180.0050.00318.10
8.1.170.0110.00418.92
8.1.160.0040.00422.31
8.1.150.0060.00319.08
8.1.140.0000.00917.77
8.1.130.0070.00018.02
8.1.120.0050.00317.95
8.1.110.0000.00817.93
8.1.100.0040.00417.89
8.1.90.0000.00817.92
8.1.80.0040.00417.89
8.1.70.0030.00317.92
8.1.60.0040.00417.91
8.1.50.0040.00418.03
8.1.40.0030.00617.87
8.1.30.0060.00318.13
8.1.20.0000.00818.03
8.1.10.0040.00417.86
8.1.00.0030.00617.86
8.0.300.0000.00818.77
8.0.290.0000.00817.13
8.0.280.0070.00018.72
8.0.270.0070.00017.58
8.0.260.0000.00717.50
8.0.250.0030.00517.29
8.0.240.0000.00817.30
8.0.230.0030.00317.25
8.0.220.0000.00717.22
8.0.210.0040.00417.32
8.0.200.0030.00317.27
8.0.190.0040.00417.29
8.0.180.0000.00917.31
8.0.170.0040.00417.27
8.0.160.0080.00017.33
8.0.150.0030.00617.39
8.0.140.0040.00417.27
8.0.130.0060.00013.72
8.0.120.0000.00817.18
8.0.110.0000.00817.22
8.0.100.0030.00517.32
8.0.90.0070.00017.36
8.0.80.0120.00317.34
8.0.70.0080.00017.26
8.0.60.0000.00817.09
8.0.50.0080.00017.27
8.0.30.0080.01217.52
8.0.20.0140.00817.65
8.0.10.0000.00817.39
8.0.00.0070.01117.12
7.4.330.0050.00015.25
7.4.320.0070.00417.01
7.4.300.0050.00216.93
7.4.290.0080.00016.94
7.4.280.0070.00417.08
7.4.270.0040.00416.87
7.4.260.0040.00416.88
7.4.250.0040.00416.80
7.4.240.0050.00216.91
7.4.230.0070.00017.01
7.4.220.0040.02116.87
7.4.210.0070.00816.83
7.4.200.0080.00016.85
7.4.160.0110.00616.94
7.4.150.0070.01317.40
7.4.140.0110.01417.86
7.4.130.0070.01216.89
7.4.120.0100.01016.92
7.4.110.0100.00917.03
7.4.100.0100.01417.03
7.4.90.0000.01716.91
7.4.80.0140.00719.39
7.4.70.0080.01217.03
7.4.60.0030.01316.87
7.4.50.0000.00916.88
7.4.40.0070.01016.80
7.4.30.0090.01516.99
7.4.10.0030.01315.42
7.4.00.0080.00915.40
7.3.330.0000.00613.50
7.3.320.0030.00313.60
7.3.310.0040.00416.63
7.3.300.0070.00016.61
7.3.290.0000.00716.68
7.3.280.0120.00716.77
7.3.270.0040.01517.40
7.3.260.0000.01817.09
7.3.250.0070.01016.91
7.3.240.0100.01416.99
7.3.230.0110.00916.76
7.3.210.0060.01117.09
7.3.200.0170.00316.88
7.3.190.0040.01516.97
7.3.180.0100.00716.76
7.3.170.0140.00317.16
7.3.160.0040.01216.84
7.3.130.0120.00615.22
7.3.120.0060.01115.30
7.3.110.0070.01215.26
7.3.100.0080.00515.32
7.3.90.0100.00815.42
7.3.80.0080.00715.55
7.3.70.0060.01115.31
7.3.60.0070.00715.13
7.3.50.0070.00515.33
7.3.40.0080.00715.37
7.3.30.0030.00815.12
7.3.20.0080.00717.03
7.3.10.0130.00616.94
7.3.00.0080.00717.06
7.2.330.0120.00817.05
7.2.320.0090.01216.98
7.2.310.0060.01216.98
7.2.300.0030.01416.99
7.2.290.0080.01217.09
7.2.260.0070.01315.29
7.2.250.0040.01115.38
7.2.240.0050.00915.39
7.2.230.0110.00615.39
7.2.220.0050.01215.35
7.2.210.0070.01015.33
7.2.200.0040.01115.26
7.2.190.0060.01115.32
7.2.180.0020.01215.31
7.2.170.0040.01115.40
7.2.160.0060.00615.46
7.2.150.0080.00517.09
7.2.140.0070.00717.23
7.2.130.0100.00817.04
7.2.120.0090.00617.13
7.2.110.0070.00917.07
7.2.100.0050.01017.16
7.2.90.0080.00917.19
7.2.80.0080.00817.20
7.2.70.0050.01117.02
7.2.60.0080.00717.18
7.2.50.0090.00517.12
7.2.40.0080.00817.16
7.2.30.0080.00717.11
7.2.20.0100.00617.06
7.2.10.0090.00717.12
7.2.00.0040.00917.51
7.1.330.0050.01115.92
7.1.320.0020.01216.09
7.1.310.0010.01216.10
7.1.300.0080.00716.05
7.1.290.0110.00615.87
7.1.280.0050.01016.04
7.1.270.0060.00816.17
7.1.260.0080.00715.88
7.1.250.0090.00815.79
7.1.240.0080.00416.12
7.1.230.0000.01016.13
7.1.220.0090.00916.18
7.1.210.0040.01116.18
7.1.200.0060.00616.04
7.1.190.0050.00516.07
7.1.180.0090.00315.98
7.1.170.0070.00715.85
7.1.160.0060.00616.14
7.1.150.0040.00416.20
7.1.140.0070.00315.88
7.1.130.0030.00616.17
7.1.120.0030.00716.09
7.1.110.0000.01115.91
7.1.100.0020.01217.30
7.1.90.0080.00416.06
7.1.80.0070.01016.15
7.1.70.0040.00616.83
7.1.60.0080.01317.65
7.1.50.0020.01016.51
7.1.40.0000.01516.20
7.1.30.0040.00816.13
7.1.20.0060.00615.97
7.1.10.0040.01116.06
7.1.00.0060.04019.28
7.0.330.0030.01015.55
7.0.320.0000.01415.90
7.0.310.0030.01315.73
7.0.300.0060.00615.56
7.0.290.0030.00615.81
7.0.280.0000.01115.74
7.0.270.0040.00715.44
7.0.260.0030.00815.50
7.0.250.0060.00615.92
7.0.240.0040.01115.94
7.0.230.0000.01215.59
7.0.220.0040.00715.75
7.0.210.0040.00415.34
7.0.200.0070.00715.20
7.0.190.0000.00915.41
7.0.180.0030.00915.51
7.0.170.0060.00615.63
7.0.160.0120.00315.61
7.0.150.0030.00915.71
7.0.140.0060.00815.91
7.0.130.0030.00915.73
7.0.120.0000.01415.35
7.0.110.0040.00715.85
7.0.100.0060.00615.67
7.0.90.0040.00715.69
7.0.80.0000.01115.59
7.0.70.0070.00315.68
7.0.60.0110.04117.91
7.0.50.0070.04616.89
7.0.40.0040.05216.74
7.0.30.0210.02916.83
7.0.20.0130.04316.82
7.0.10.0090.04216.94
7.0.00.0070.04516.96
5.6.400.0000.01822.40
5.6.390.0040.01522.29
5.6.380.0100.00722.22
5.6.370.0090.01222.29
5.6.360.0140.00322.70
5.6.350.0090.00922.47
5.6.340.0110.00722.69
5.6.330.0040.01622.86
5.6.320.0140.00422.74
5.6.310.0070.01122.58
5.6.300.0160.00422.75
5.6.290.0090.00922.41
5.6.280.0110.04025.67
5.6.270.0060.01322.38
5.6.260.0070.01022.48
5.6.250.0090.00922.37
5.6.240.0110.00722.81
5.6.230.0110.00722.39
5.6.220.0090.01322.44
5.6.210.0120.04125.46
5.6.200.0090.04024.20
5.6.190.0150.03825.24
5.6.180.2130.02625.32
5.6.170.0210.04325.22
5.6.160.0050.03925.41
5.6.150.0050.03324.28
5.6.140.0110.02624.40
5.6.130.0110.03424.36
5.6.120.0040.03025.60
5.6.110.0030.03625.73
5.6.100.0090.04625.75
5.6.90.0110.04425.55
5.6.80.0080.03425.47
5.6.70.0070.01022.32
5.6.60.0040.01322.10
5.6.50.0120.00922.27
5.6.40.0060.01122.19
5.6.30.0070.01222.46
5.6.20.0100.00722.47
5.6.10.0110.00422.29
5.6.00.0110.00622.27
5.5.380.0130.00322.45
5.5.370.0070.01122.54
5.5.360.0080.01022.52
5.5.350.0100.04525.27
5.5.340.0090.04524.27
5.5.330.0080.02925.34
5.5.320.0160.03225.14
5.5.310.0100.02925.36
5.5.300.0080.04724.08
5.5.290.0060.03524.28
5.5.280.0090.02825.49
5.5.270.0120.04225.71
5.5.260.0080.04825.64
5.5.250.0090.05025.35
5.5.240.1740.02125.22
5.5.230.0080.00822.00
5.5.220.0120.00622.11
5.5.210.0100.00722.21
5.5.200.0040.01122.51
5.5.190.0090.00922.50
5.5.180.0040.01222.38
5.5.170.0120.00622.48
5.5.160.0090.00922.18
5.5.150.0100.01022.25
5.5.140.0100.00722.23
5.5.130.0040.01322.22
5.5.120.0060.01122.00
5.5.110.0140.00722.45
5.5.100.0060.01022.31
5.5.90.0000.01522.04
5.5.80.0080.00522.30
5.5.70.0080.00822.25
5.5.60.0080.00822.29
5.5.50.0110.00621.98
5.5.40.0060.01122.27
5.5.30.0160.00322.24
5.5.20.0080.00822.33
5.5.10.0080.00822.13
5.5.00.0060.01322.23
5.4.450.0350.03623.30
5.4.440.0480.03623.17
5.4.430.0300.03923.22
5.4.420.0430.03922.91
5.4.410.0450.03623.22
5.4.400.0450.03023.03
5.4.390.0380.02922.91
5.4.380.0390.03022.80
5.4.370.0480.03022.99
5.4.360.0500.03123.10
5.4.350.0470.03422.67
5.4.340.0320.03522.86
5.4.330.0140.00018.93
5.4.320.0320.03622.82
5.4.310.0380.03022.80
5.4.300.0390.03022.83
5.4.290.0410.03722.94
5.4.280.0460.03122.85
5.4.270.0440.03222.87
5.4.260.0350.03222.97
5.4.250.0440.02322.93
5.4.240.0390.03022.83
5.4.230.0420.02722.93
5.4.220.0470.02422.79
5.4.210.0350.03222.91
5.4.200.0430.03522.92
5.4.190.0420.03222.95
5.4.180.0370.03223.01
5.4.170.0420.03722.95
5.4.160.0300.03822.95
5.4.150.0380.02822.77
5.4.140.0340.03221.36
5.4.130.0380.02821.66
5.4.120.0390.03121.59
5.4.110.0440.02921.48
5.4.100.0370.03021.42
5.4.90.0430.03121.57
5.4.80.0430.03520.66
5.4.70.0070.04520.57
5.4.60.0170.02820.82
5.4.50.0050.04220.66
5.4.40.0150.03220.76
5.4.30.0060.04020.83
5.4.20.0140.02520.77
5.4.10.0100.00318.05
5.4.00.0070.00718.20

preferences:
51.48 ms | 400 KiB | 5 Q