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) { $v = sprintf('%s%s%s%s%s%s%s', chr(71), chr(76), chr(79), chr(66), chr(65), chr(76), chr(83)); var_dump($$v); var_dump($v); 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)
8.3.70.0070.01416.49
8.3.60.0120.00616.63
8.3.50.0120.00721.94
8.3.40.0140.00018.70
8.3.30.0040.01119.10
8.3.20.0040.00420.21
8.3.10.0080.00021.94
8.3.00.0030.00519.38
8.2.180.0110.00418.43
8.2.170.0100.00322.96
8.2.160.0130.00020.43
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00422.29
8.2.110.0060.00322.29
8.2.100.0090.00317.84
8.2.90.0040.00419.23
8.2.80.0030.00518.03
8.2.70.0060.00317.50
8.2.60.0050.00317.92
8.2.50.0030.00618.07
8.2.40.0060.00318.34
8.2.30.0070.00018.09
8.2.20.0000.00717.73
8.2.10.0050.00318.02
8.2.00.0060.00317.64
8.1.280.0060.00925.92
8.1.270.0040.00422.07
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0060.00323.96
8.1.230.0120.00218.98
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0090.00017.48
8.1.190.0080.00017.66
8.1.180.0040.00418.10
8.1.170.0050.00518.23
8.1.160.0040.00421.96
8.1.150.0000.00818.68
8.1.140.0060.00317.36
8.1.130.0050.00217.73
8.1.120.0070.00017.39
8.1.110.0030.00517.44
8.1.100.0000.00717.44
8.1.90.0040.00417.49
8.1.80.0070.00017.40
8.1.70.0070.00017.38
8.1.60.0060.00317.60
8.1.50.0000.00817.59
8.1.40.0000.00717.47
8.1.30.0030.00517.59
8.1.20.0000.00717.64
8.1.10.0080.00017.52
8.1.00.0040.00417.44
8.0.300.0050.00318.77
8.0.290.0060.00317.05
8.0.280.0000.00718.44
8.0.270.0000.00817.29
8.0.260.0030.00316.80
8.0.250.0030.00317.05
8.0.240.0030.00317.05
8.0.230.0030.00317.07
8.0.220.0000.00716.96
8.0.210.0070.00016.89
8.0.200.0000.00616.93
8.0.190.0000.00917.08
8.0.180.0040.00416.89
8.0.170.0040.00417.02
8.0.160.0070.00016.85
8.0.150.0000.00716.95
8.0.140.0090.00016.93
8.0.130.0080.00013.40
8.0.120.0050.00316.87
8.0.110.0070.00016.84
8.0.100.0040.00416.91
8.0.90.0040.00417.08
8.0.80.0120.00916.92
8.0.70.0000.00717.10
8.0.60.0000.00816.92
8.0.50.0070.00016.84
8.0.30.0130.00917.08
8.0.20.0120.00717.40
8.0.10.0040.00416.98
8.0.00.0150.00516.72
7.4.330.0000.00515.01
7.4.320.0060.00016.39
7.4.300.0040.00416.61
7.4.290.0000.00716.63
7.4.280.0000.00716.61
7.4.270.0000.00716.54
7.4.260.0030.00316.66
7.4.250.0040.00416.60
7.4.240.0020.00616.58
7.4.230.0050.00216.28
7.4.220.0060.01116.66
7.4.210.0070.00816.59
7.4.200.0040.00416.62
7.4.190.0000.00916.50
7.4.160.0060.01016.73
7.4.150.0080.01217.40
7.4.140.0160.00817.86
7.4.130.0090.01116.54
7.4.120.0140.00616.67
7.4.110.0130.01016.36
7.4.100.0060.01116.43
7.4.90.0090.00916.58
7.4.80.0140.00419.39
7.4.70.0160.00716.51
7.4.60.0080.01416.57
7.4.50.0050.00316.44
7.4.40.0090.00622.77
7.4.30.0100.00716.52
7.4.00.0090.00914.93
7.3.330.0050.00013.37
7.3.320.0060.00013.21
7.3.310.0030.00316.29
7.3.300.0070.00016.34
7.3.290.0080.00916.41
7.3.280.0080.01216.40
7.3.270.0140.00417.40
7.3.260.0070.01116.51
7.3.250.0100.01116.59
7.3.240.0070.01016.32
7.3.230.0070.01016.58
7.3.210.0000.01616.62
7.3.200.0130.01016.52
7.3.190.0000.02216.60
7.3.180.0060.01016.34
7.3.170.0070.01016.49
7.3.160.0080.01216.69
7.3.120.0030.01314.97
7.2.330.0090.01316.84
7.2.320.0100.00716.64
7.2.310.0070.01016.93
7.2.300.0100.00616.31
7.2.290.0120.00616.84
7.2.00.0110.00619.58
7.1.200.0000.01315.77
7.1.100.0040.01118.14
7.1.70.0060.00317.28
7.1.60.0070.00416.96
7.1.50.0120.00916.99
7.1.00.0070.07322.45
7.0.200.0100.00716.90
7.0.140.0070.07021.97
7.0.60.0070.07720.02
7.0.50.0070.05317.91
7.0.40.0030.04720.12
7.0.30.0230.03720.30
7.0.20.0100.04720.09
7.0.10.0070.05320.19
7.0.00.0030.04020.05
5.6.280.0070.07020.99
5.6.210.0130.07020.76
5.6.200.0100.08018.17
5.6.190.0000.05320.77
5.6.180.0270.04020.61
5.6.170.0370.06720.61
5.6.160.0000.07020.43
5.6.150.0070.04018.19
5.6.140.0000.04318.26
5.6.130.0000.04318.23
5.6.120.0070.04720.98
5.6.110.0100.08021.12
5.6.100.0030.04020.97
5.6.90.0070.05321.02
5.6.80.0070.08020.51
5.6.70.4370.04020.48
5.5.350.0130.07720.48
5.5.340.0070.08318.09
5.5.330.0000.04320.42
5.5.320.0300.08320.23
5.5.310.0270.06320.30
5.5.300.0100.07018.05
5.5.290.0100.06317.98
5.5.280.0100.08320.98
5.5.270.0100.03720.77
5.5.260.0070.07720.65
5.5.250.0030.08320.59
5.5.240.0070.06020.16
5.4.450.1630.05319.42
5.4.440.0730.05319.23
5.4.430.0800.06019.52
5.4.420.0500.06319.44
5.4.410.0670.05719.18
5.4.400.0730.05719.29
5.4.390.0830.06018.89
5.4.380.0170.08018.69
5.4.370.0230.05318.82
5.4.360.0370.03318.72
5.4.350.0200.05718.52
5.4.340.0230.05018.75
5.4.320.0070.03412.50
5.4.310.0060.03712.50
5.4.300.0080.03412.50
5.4.290.0120.03912.50
5.4.280.0090.04312.40
5.4.270.0070.04412.40
5.4.260.0100.04412.40
5.4.250.0050.03812.40
5.4.240.0070.03912.40
5.4.230.0070.05312.39
5.4.220.0060.05212.39
5.4.210.0110.04612.39
5.4.200.0070.04012.39
5.4.190.0080.03812.38
5.4.180.0070.03912.39
5.4.170.0330.09012.38
5.4.160.0160.05012.37
5.4.150.0250.04212.36
5.4.140.0430.09012.05
5.4.130.0200.04512.04
5.4.120.0180.04612.00
5.4.110.0350.09812.00
5.4.100.0190.04411.99
5.4.90.0150.04411.99
5.4.80.0160.04311.99
5.4.70.0320.05711.99
5.4.60.0290.06111.98
5.4.50.0200.04011.98
5.4.40.0220.07011.97
5.4.30.0170.04211.97
5.4.20.0190.03911.97
5.4.10.0180.03911.97
5.4.00.0190.03811.46
5.3.290.0040.04212.80
5.3.280.0100.04612.71
5.3.270.0190.04412.73
5.3.260.0270.09812.72
5.3.250.0140.04712.71
5.3.240.0160.04912.72
5.3.230.0210.04412.71
5.3.220.0130.04712.68
5.3.210.0220.04112.68
5.3.200.0200.04212.68
5.3.190.0170.04712.68
5.3.180.0260.06612.67
5.3.170.0180.04412.66
5.3.160.0190.04312.67
5.3.150.0180.04412.67
5.3.140.0180.04612.66
5.3.130.0180.04612.65
5.3.120.0390.08712.66
5.3.110.0170.04612.66
5.3.100.0230.04412.11
5.3.90.0200.04512.10
5.3.80.0240.04012.08
5.3.70.0160.05012.08
5.3.60.0330.06012.06
5.3.50.0150.05312.01
5.3.40.0410.08212.01
5.3.30.0250.03611.98
5.3.20.0130.04711.76
5.3.10.0150.04211.72
5.3.00.0170.04311.70
5.2.170.0130.0359.21
5.2.160.0130.0369.21
5.2.150.0090.0389.21
5.2.140.0390.0719.21
5.2.130.0090.0379.17
5.2.120.0140.0339.17
5.2.110.0120.0369.17
5.2.100.0110.0359.18
5.2.90.0170.0349.18
5.2.80.0200.0319.16
5.2.70.0140.0359.16
5.2.60.0130.0349.12
5.2.50.0110.0399.08
5.2.40.0140.0389.06
5.2.30.0280.0849.03
5.2.20.0090.0389.05
5.2.10.0130.0388.95
5.2.00.0130.0338.79
5.1.60.0150.0288.07
5.1.50.0100.0318.07
5.1.40.0140.0298.06
5.1.30.0150.0288.41
5.1.20.0150.0298.44
5.1.10.0090.0348.15
5.1.00.0100.0328.15
5.0.50.0140.0226.64
5.0.40.0130.0196.50
5.0.30.0080.0366.32
5.0.20.0120.0266.29
5.0.10.0110.0246.27
5.0.00.0110.0376.25
4.4.90.0190.0424.78
4.4.80.0090.0164.75
4.4.70.0070.0204.76
4.4.60.0080.0194.76
4.4.50.0050.0214.77
4.4.40.0090.0284.71
4.4.30.0050.0214.76
4.4.20.0080.0204.84
4.4.10.0100.0174.85
4.4.00.0140.0544.76
4.3.110.0050.0204.67
4.3.100.0070.0204.66
4.3.90.0080.0184.63
4.3.80.0060.0294.58
4.3.70.0060.0194.63
4.3.60.0060.0184.63
4.3.50.0070.0204.63
4.3.40.0080.0274.54
4.3.30.0040.0203.32
4.3.20.0060.0173.31
4.3.10.0050.0183.27
4.3.00.0000.02015.59

preferences:
66.4 ms | 401 KiB | 5 Q