3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "I need to replace {X} and {Y}"; $X = 'something'; $Y = 'something else'; function parse($string) { $varName = sprintf('%s%s%s%s%s%s%s', chr(36), chr(71), chr(76), chr(79), chr(66), chr(65), chr(76), chr(83)); var_dump($$varName['X']); return; preg_match_all('/\{(.*?)\}/', $string, $matches); foreach ($matches[1] as $value) { $string = str_replace('{'.$value.'}', ${$value}, $string); } return $string; } echo parse($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)
8.3.60.0100.01018.56
8.3.50.0120.00922.11
8.3.40.0040.01118.85
8.3.30.0090.00618.84
8.3.20.0090.00618.72
8.3.10.0040.00420.50
8.3.00.0070.00317.75
8.2.180.0080.01216.75
8.2.170.0090.00622.96
8.2.160.0100.01022.13
8.2.150.0040.01124.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0100.00319.95
8.2.110.0060.00319.27
8.2.100.0060.00617.78
8.2.90.0030.00617.97
8.2.80.0000.00818.16
8.2.70.0030.00617.50
8.2.60.0050.00217.63
8.2.50.0040.00417.63
8.2.40.0000.00718.28
8.2.30.0040.00419.83
8.2.20.0020.00517.77
8.2.10.0000.00817.77
8.2.00.0000.00817.71
8.1.280.0140.00025.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00323.92
8.1.230.0040.00820.93
8.1.220.0050.00317.74
8.1.210.0050.00318.98
8.1.200.0000.00817.36
8.1.190.0050.00317.23
8.1.180.0090.00018.10
8.1.170.0060.00318.96
8.1.160.0000.00718.92
8.1.150.0000.00718.57
8.1.140.0080.00017.47
8.1.130.0040.00417.38
8.1.120.0040.00417.48
8.1.110.0100.00017.46
8.1.100.0030.00517.43
8.1.90.0030.00517.52
8.1.80.0040.00417.55
8.1.70.0050.00317.38
8.1.60.0040.00417.50
8.1.50.0000.00817.51
8.1.40.0030.00617.44
8.1.30.0060.00317.73
8.1.20.0030.00617.59
8.1.10.0000.00717.63
8.1.00.0080.00017.52
8.0.300.0000.00719.98
8.0.290.0030.00616.88
8.0.280.0000.00718.46
8.0.270.0000.00717.27
8.0.260.0030.00316.98
8.0.250.0070.00017.05
8.0.240.0030.00716.94
8.0.230.0030.00517.09
8.0.220.0030.00317.02
8.0.210.0000.00716.87
8.0.200.0050.00217.05
8.0.190.0040.00416.95
8.0.180.0070.00017.07
8.0.170.0040.00516.96
8.0.160.0050.00216.97
8.0.150.0040.00416.84
8.0.140.0080.00416.93
8.0.130.0030.00313.48
8.0.120.0000.00716.94
8.0.110.0040.00417.08
8.0.100.0040.00416.85
8.0.90.0000.00717.10
8.0.80.0100.00917.00
8.0.70.0040.00416.98
8.0.60.0040.00416.93
8.0.50.0000.00816.80
8.0.30.0150.00517.11
8.0.20.0070.01317.40
8.0.10.0040.00416.94
8.0.00.0120.00517.01
7.4.330.0020.00214.77
7.4.320.0060.00016.54
7.4.300.0070.00016.63
7.4.290.0000.00616.44
7.4.280.0060.00316.43
7.4.270.0070.00016.64
7.4.260.0000.00713.36
7.4.250.0080.00016.57
7.4.240.0000.00816.61
7.4.230.0000.00716.63
7.4.220.0070.01016.47
7.4.210.0080.00816.64
7.4.200.0030.00516.53
7.4.190.0030.00316.49
7.4.160.0120.00416.39
7.4.150.0100.00717.40
7.4.140.0070.01017.86
7.4.130.0060.01116.70
7.4.120.0070.01116.50
7.4.110.0100.00716.61
7.4.100.0090.01216.72
7.4.90.0110.01116.84
7.4.80.0070.01019.03
7.4.70.0120.00616.68
7.4.60.0130.00316.46
7.4.50.0000.00516.46
7.4.40.0040.01522.27
7.4.30.0060.01216.47
7.4.00.0040.01215.07
7.3.330.0000.00613.23
7.3.320.0050.00013.39
7.3.310.0040.00416.43
7.3.300.0030.00316.41
7.3.290.0000.01316.40
7.3.280.0100.00716.36
7.3.270.0070.01017.40
7.3.260.0150.01018.24
7.3.250.0100.00816.41
7.3.240.0100.00716.30
7.3.230.0140.00316.60
7.3.210.0060.01116.73
7.3.200.0000.01819.39
7.3.190.0070.01416.50
7.3.180.0080.00816.57
7.3.170.0100.00716.53
7.3.160.0100.00716.62
7.3.120.0030.01214.96
7.2.330.0060.01016.77
7.2.320.0140.00616.43
7.2.310.0160.00316.34
7.2.300.0100.01316.71
7.2.290.0080.00816.43
7.2.80.0070.00716.41
7.2.60.0000.01416.83
7.2.00.0060.00619.41
7.1.200.0000.00815.65
7.1.70.0050.00217.25
7.1.60.0060.00616.93
7.1.50.0230.00734.98
7.1.00.0030.03322.33
7.0.200.0030.01216.57
7.0.140.0070.07022.08
7.0.60.0130.07719.86
7.0.50.0130.04317.98
7.0.40.0000.07017.79
7.0.30.0100.08317.89
7.0.20.0030.05717.75
7.0.10.0070.04017.72
7.0.00.0170.07717.75
5.6.280.0000.08020.82
5.6.210.0130.07320.50
5.6.200.0200.07018.16
5.6.190.0070.08018.18
5.6.180.0070.04018.22
5.6.170.0070.07318.19
5.6.160.0030.07718.25
5.6.150.0000.06318.18
5.6.140.0070.08718.18
5.6.130.0070.07318.19
5.6.120.0000.07018.22
5.6.110.0130.07018.18
5.6.100.0070.06318.15
5.6.90.0100.08318.18
5.6.80.0130.06717.54
5.6.70.0000.05317.52
5.6.60.0070.07317.64
5.6.50.0000.04017.68
5.6.40.0070.03717.64
5.6.30.0030.03717.54
5.6.20.0000.04017.58
5.6.10.0030.03717.64
5.6.00.0000.04017.54
5.5.350.0000.09020.41
5.5.340.0100.07717.96
5.5.330.0170.06317.96
5.5.320.0170.06018.09
5.5.310.0100.07017.98
5.5.300.0170.07017.97
5.5.290.0030.08317.98
5.5.280.0030.05718.03
5.5.270.0170.05318.06
5.5.260.0030.08318.02
5.5.250.0130.07317.77
5.5.240.0070.06317.48
5.5.230.0200.06317.36
5.5.220.0070.04317.33
5.5.210.0100.05017.36
5.5.200.0070.03317.38
5.5.190.0000.04017.39
5.5.180.0030.04317.31
5.5.160.0030.05317.27
5.5.150.0000.04017.34
5.5.140.0070.03317.27
5.5.130.0000.04017.30
5.5.120.0100.03017.31
5.5.110.0030.03717.29
5.5.100.0030.03717.23
5.5.90.0030.03317.17
5.5.80.0030.03717.32
5.5.70.0030.03717.16
5.5.60.0100.03017.16
5.5.50.0070.03317.23
5.5.40.0070.03317.31
5.5.30.0000.04017.18
5.5.20.0030.03717.19
5.5.10.0000.04017.19
5.5.00.0000.04017.21
5.4.450.0030.08019.47
5.4.440.0030.06319.28
5.4.430.0030.05019.37
5.4.420.0030.06019.38
5.4.410.0030.08319.25
5.4.400.0100.07319.14
5.4.390.0070.07719.02
5.4.380.0130.07019.10
5.4.370.0070.03718.95
5.4.360.0100.03719.10
5.4.350.0030.03718.99
5.4.340.0000.04719.10
5.4.320.0030.03719.09
5.4.310.0000.04019.06
5.4.300.0030.03719.05
5.4.290.0030.03719.05
5.4.280.0000.04019.04
5.4.270.0030.03718.95
5.4.260.0000.04019.11
5.4.250.0100.03019.08
5.4.240.0030.03718.98
5.4.230.0030.03719.01
5.4.220.0030.03718.95
5.4.210.0100.03019.09
5.4.200.0030.03719.09
5.4.190.0070.03319.02
5.4.180.0030.03719.00
5.4.170.0070.03319.02
5.4.160.0100.03019.03
5.4.150.0000.04019.08
5.4.140.0070.03016.39
5.4.130.0000.03716.54
5.4.120.0100.05316.29
5.4.110.0030.06316.35
5.4.100.0200.05316.43
5.4.90.0070.04016.32
5.4.80.0000.04716.46
5.4.70.0030.07016.46
5.4.60.0130.06016.44
5.4.50.0070.06716.43
5.4.40.0000.05316.45
5.4.30.0030.03716.35
5.4.20.0070.07016.42
5.4.10.0200.04716.40
5.4.00.0000.07715.85
5.3.290.0000.04014.70
5.3.280.0030.03714.81
5.3.270.0000.04014.62
5.3.260.0030.04014.61
5.3.250.0000.04014.60
5.3.240.0000.04014.68
5.3.230.0030.03714.55
5.3.220.0100.05714.61
5.3.210.0070.07314.52
5.3.200.0030.07314.56
5.3.190.0100.07714.54
5.3.180.0000.08014.59
5.3.170.0000.08014.60
5.3.160.0130.06714.78
5.3.150.0170.06714.53
5.3.140.0070.07014.37
5.3.130.0200.06714.60
5.3.120.0030.08014.66
5.3.110.0100.07714.59
5.3.100.0000.08014.11
5.3.90.0170.06714.07
5.3.80.0030.04014.06
5.3.70.0030.07013.90
5.3.60.0070.05014.03
5.3.50.0170.06713.80
5.3.40.0100.06313.84
5.3.30.0130.07013.82
5.3.20.0130.06713.74
5.3.10.0030.07713.74
5.3.00.0030.06313.47
5.2.170.0030.04311.04
5.2.160.0070.02711.04
5.2.150.0070.06011.18
5.2.140.0070.06311.19
5.2.130.0070.04711.09
5.2.120.0070.04011.16
5.2.110.0030.06711.09
5.2.100.0030.04011.31
5.2.90.0030.03011.07
5.2.80.0000.06711.13
5.2.70.0000.06311.30
5.2.60.0130.05711.26
5.2.50.0030.06011.04
5.2.40.0000.06711.09
5.2.30.0100.06010.96
5.2.20.0070.06011.16
5.2.10.0030.06310.86
5.2.00.0030.06310.68
5.1.60.0100.0239.83
5.1.50.0030.05010.22
5.1.40.0030.0379.97
5.1.30.0070.03010.39
5.1.20.0000.05010.25
5.1.10.0030.05310.11
5.1.00.0100.04710.05
5.0.50.0030.0478.54
5.0.40.0030.0338.38
5.0.30.0000.0708.45
5.0.20.0070.0408.27
5.0.10.0100.0408.06
5.0.00.0070.0678.24
4.4.90.0000.0378.06
4.4.80.0000.0338.06
4.4.70.0070.0338.06
4.4.60.0000.0308.06
4.4.50.0030.0308.06
4.4.40.0030.0408.06
4.4.30.0000.0408.06
4.4.20.0000.0208.06
4.4.10.0100.0278.06
4.4.00.0000.0508.06
4.3.110.0000.0378.06
4.3.100.0070.0278.06
4.3.90.0130.0138.06
4.3.80.0000.0578.06
4.3.70.0030.0238.06
4.3.60.0100.0278.06
4.3.50.0070.0208.06
4.3.40.0000.0378.06
4.3.30.0000.0378.06
4.3.20.0030.0338.06
4.3.10.0070.0308.06
4.3.00.0000.0238.06

preferences:
52.42 ms | 401 KiB | 5 Q