3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strs = ['2 + 2', 'f( " ")', 'f("Test \\"mystring\\" .")', 'f("\' ", " ")']; $rx = '~(?<!\\\\)(?:\\\\{2})*(?:"[^\\\\"]*(?:\\\\.[^"\\\\]*)*"|\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\')(*SKIP)(*F)|\h+~s'; print_r( preg_replace($rx, '', $strs) );

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)
8.4.140.0140.00817.70
8.4.130.0120.00817.70
8.4.120.0140.00620.30
8.4.110.0110.00618.93
8.4.100.0120.00717.96
8.4.90.0130.00520.64
8.4.80.0120.00620.50
8.4.70.0080.01219.00
8.4.60.0150.00520.70
8.4.50.0090.00720.19
8.4.40.0070.01319.66
8.4.30.0130.00719.30
8.4.20.0120.00818.75
8.4.10.0120.00419.54
8.3.270.0130.00716.80
8.3.260.0120.00816.75
8.3.250.0120.00718.78
8.3.240.0130.00616.79
8.3.230.0100.00916.44
8.3.220.0110.00518.93
8.3.210.0080.01016.54
8.3.200.0040.00516.53
8.3.190.0120.00717.36
8.3.180.0040.00518.87
8.3.170.0080.00017.09
8.3.160.0120.00616.86
8.3.150.0180.00016.99
8.3.140.0050.00316.62
8.3.130.0050.00316.44
8.3.120.0090.00018.78
8.3.110.0090.00016.75
8.3.100.0050.00524.06
8.3.90.0060.01526.77
8.3.80.0080.00016.75
8.3.70.0110.00716.58
8.3.60.0070.00718.43
8.3.50.0110.00717.42
8.3.40.0190.00018.83
8.3.30.0130.00618.80
8.3.20.0080.00020.60
8.3.10.0000.00823.61
8.3.00.0080.00022.46
8.2.290.0090.01116.85
8.2.280.0130.00718.26
8.2.270.0070.00716.55
8.2.260.0070.01117.04
8.2.250.0070.00716.52
8.2.240.0090.00618.79
8.2.230.0110.00420.94
8.2.220.0080.00037.54
8.2.210.0060.00326.77
8.2.200.0090.00016.75
8.2.190.0070.01016.63
8.2.180.0110.01118.79
8.2.170.0120.00322.96
8.2.160.0060.00922.27
8.2.150.0000.00824.18
8.2.140.0050.00524.66
8.2.130.0050.00326.16
8.2.120.0080.00019.95
8.2.110.0090.00020.43
8.2.100.0110.00017.91
8.2.90.0000.00918.81
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0040.00417.75
8.2.50.0050.00317.63
8.2.40.0080.00019.60
8.2.30.0040.00419.07
8.2.20.0000.00718.00
8.2.10.0040.00419.21
8.2.00.0000.00818.00
8.1.330.0110.00821.70
8.1.320.0120.00916.55
8.1.310.0080.00016.41
8.1.300.0080.01118.33
8.1.290.0060.00330.84
8.1.280.0100.00325.92
8.1.270.0080.00024.66
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0040.00417.79
8.1.230.0000.01117.83
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0050.00517.38
8.1.190.0050.00317.12
8.1.180.0080.00418.10
8.1.170.0040.00418.96
8.1.160.0060.00318.76
8.1.150.0040.00418.85
8.1.140.0030.00320.16
8.1.130.0000.00720.34
8.1.120.0070.00017.54
8.1.110.0020.00517.40
8.1.100.0000.00817.43
8.1.90.0040.00417.44
8.1.80.0040.00417.55
8.1.70.0030.00517.38
8.1.60.0030.00517.67
8.1.50.0040.00417.56
8.1.40.0000.00817.59
8.1.30.0000.00817.80
8.1.20.0040.00417.79
8.1.10.0030.00617.62
8.1.00.0040.00417.55
8.0.300.0040.00418.77
8.0.290.0030.00616.75
8.0.280.0000.00718.45
8.0.270.0030.00316.90
8.0.260.0000.00620.22
8.0.250.0000.00717.00
8.0.240.0030.00317.04
8.0.230.0040.00417.06
8.0.220.0040.00416.95
8.0.210.0030.00316.91
8.0.200.0000.00717.07
8.0.190.0000.00717.04
8.0.180.0030.00517.05
8.0.170.0000.00816.88
8.0.160.0080.00016.87
8.0.150.0040.00416.97
8.0.140.0050.00216.93
8.0.130.0000.00713.40
8.0.120.0070.00016.86
8.0.110.0050.00317.04
8.0.100.0040.00416.82
8.0.90.0040.00416.86
8.0.80.0070.01016.99
8.0.70.0000.00716.98
8.0.60.0040.00416.78
8.0.50.0000.00716.86
8.0.30.0120.00517.13
8.0.20.0080.01417.15
8.0.10.0040.00417.13
8.0.00.0160.00316.84
7.4.330.0050.00015.55
7.4.320.0000.00716.66
7.4.300.0060.00016.65
7.4.290.0000.00716.68
7.4.280.0040.00416.79
7.4.270.0030.00316.57
7.4.260.0030.00316.58
7.4.250.0030.00316.62
7.4.240.0000.00716.69
7.4.230.0050.00316.82
7.4.220.0040.00416.82
7.4.210.0060.01016.70
7.4.200.0030.00316.74
7.4.160.0090.01016.62
7.4.140.0090.01017.86
7.4.130.0070.01116.63
7.4.120.0120.00916.60
7.4.110.0130.00316.75
7.4.100.0070.01016.70
7.4.90.0040.01316.50
7.4.80.0120.01219.39
7.4.70.0150.00316.67
7.4.60.0140.00316.51
7.4.50.0110.00416.38
7.4.40.0040.01416.44
7.4.00.0070.00814.98
7.3.330.0000.00713.20
7.3.320.0030.00313.13
7.3.310.0080.00016.28
7.3.300.0000.00616.15
7.3.290.0140.00416.29
7.3.280.0080.01016.25
7.3.260.0120.00716.55
7.3.240.0070.00916.42
7.3.230.0090.01616.59
7.3.210.0100.01016.46
7.3.200.0100.01016.18
7.3.190.0140.00316.54
7.3.180.0090.00616.37
7.3.170.0070.01416.53
7.3.160.0120.01416.31
7.3.120.0110.00614.99
7.3.110.0070.01114.83
7.3.100.0090.00615.03
7.3.90.0030.01214.86
7.3.80.0060.00614.84
7.3.70.0030.01014.82
7.3.60.0070.00714.91
7.3.50.0100.00614.83
7.3.40.0090.00814.79
7.3.30.0090.00614.72
7.3.20.0260.01215.66
7.3.10.0330.00515.70
7.3.00.0290.01015.74
7.2.330.0040.01516.57
7.2.320.0090.01416.41
7.2.310.0100.00616.42
7.2.300.0030.01316.59
7.2.290.0200.00316.66
7.2.250.0040.01515.03
7.2.240.0100.01015.20
7.2.230.0060.01215.06
7.2.220.0110.00715.13
7.2.210.0000.01515.11
7.2.200.0100.00614.78
7.2.190.0040.00815.21
7.2.180.0070.00415.13
7.2.170.0090.00615.05
7.2.160.0080.01214.87
7.2.150.0610.00715.04
7.2.140.0650.00715.03
7.2.130.0990.00414.89
7.2.120.0600.01315.00
7.2.110.0620.01715.02
7.2.100.0620.00715.10
7.2.90.0550.01014.59
7.2.80.0630.00715.02
7.2.70.0380.01314.85
7.2.60.0620.01014.74
7.2.50.0500.01214.90
7.2.40.0540.00915.05
7.2.30.0570.01014.96
7.2.20.0580.00314.64
7.2.10.0640.01815.10
7.2.00.0450.00315.19
7.1.330.0030.01215.92
7.1.320.0060.00315.77
7.1.310.0100.00316.07
7.1.300.0070.00715.84
7.1.290.0090.00915.84
7.1.280.0070.00315.73
7.1.270.0250.01314.97
7.1.260.0340.00614.92
7.1.250.0470.00914.06

preferences:
31.91 ms | 403 KiB | 5 Q