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) { $varName = sprintf('%s%s%s%s%s%s%s%s', chr(36), chr(71), chr(76), chr(79), chr(66), chr(65), chr(76), chr(83)); var_dump($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)
8.3.60.0110.00716.75
8.3.50.0110.00517.55
8.3.40.0040.01119.02
8.3.30.0070.00718.76
8.3.20.0050.00318.80
8.3.10.0070.00720.48
8.3.00.0050.00319.38
8.2.180.0070.00718.67
8.2.170.0190.00322.96
8.2.160.0060.00820.96
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0000.00926.16
8.2.120.0060.00317.50
8.2.110.0060.00321.00
8.2.100.0040.00717.64
8.2.90.0090.00019.17
8.2.80.0000.00817.93
8.2.70.0030.00517.75
8.2.60.0040.00417.80
8.2.50.0080.00018.07
8.2.40.0000.00818.34
8.2.30.0040.00418.08
8.2.20.0060.00317.69
8.2.10.0040.00417.69
8.2.00.0040.00417.77
8.1.280.0150.00625.92
8.1.270.0090.00024.66
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0030.00622.41
8.1.230.0080.00420.95
8.1.220.0040.00417.74
8.1.210.0090.00018.91
8.1.200.0030.00617.35
8.1.190.0050.00317.55
8.1.180.0040.00418.10
8.1.170.0030.00618.84
8.1.160.0040.00418.92
8.1.150.0000.00818.52
8.1.140.0050.00317.41
8.1.130.0030.00317.73
8.1.120.0000.00817.37
8.1.110.0040.00417.42
8.1.100.0040.00417.47
8.1.90.0030.00617.48
8.1.80.0000.00817.43
8.1.70.0070.00017.34
8.1.60.0040.00417.50
8.1.50.0030.00617.39
8.1.40.0050.00217.59
8.1.30.0040.00417.59
8.1.20.0040.00417.66
8.1.10.0040.00417.61
8.1.00.0040.00417.55
8.0.300.0000.00719.86
8.0.290.0070.00016.75
8.0.280.0060.00318.29
8.0.270.0050.00317.24
8.0.260.0070.00016.86
8.0.250.0000.00716.98
8.0.240.0000.00716.94
8.0.230.0030.00316.97
8.0.220.0030.00316.84
8.0.210.0000.00716.96
8.0.200.0000.00717.00
8.0.190.0040.00416.93
8.0.180.0040.00416.86
8.0.170.0040.00416.83
8.0.160.0000.00816.82
8.0.150.0040.00416.76
8.0.140.0090.00016.91
8.0.130.0030.00313.41
8.0.120.0040.00416.90
8.0.110.0040.00416.98
8.0.100.0040.00416.76
8.0.90.0040.00416.93
8.0.80.0080.00816.91
8.0.70.0030.00316.89
8.0.60.0040.00416.95
8.0.50.0000.00716.96
8.0.30.0120.00717.23
8.0.20.0120.00616.89
8.0.10.0000.00716.92
8.0.00.0090.01016.74
7.4.330.0030.00312.97
7.4.320.0000.00716.49
7.4.300.0030.00316.65
7.4.290.0030.00316.54
7.4.280.0000.00916.45
7.4.270.0070.00016.46
7.4.260.0030.00313.25
7.4.250.0030.00516.57
7.4.240.0030.00316.63
7.4.230.0070.00016.46
7.4.220.0140.01116.57
7.4.210.0090.00616.56
7.4.200.0040.00416.52
7.4.190.0000.00816.68
7.4.160.0120.00816.44
7.4.150.0100.00716.55
7.4.140.0090.00916.66
7.4.130.0080.01016.46
7.4.120.0180.00216.54
7.4.110.0070.01016.60
7.4.100.0070.01016.36
7.4.90.0030.01516.44
7.4.80.0120.01319.39
7.4.70.0130.00316.61
7.4.60.0110.00716.52
7.4.50.0050.00016.37
7.4.40.0040.01116.42
7.4.30.0070.01416.46
7.4.00.0100.00614.94
7.3.330.0000.00713.42
7.3.320.0000.00513.39
7.3.310.0000.00716.39
7.3.300.0030.00316.39
7.3.290.0130.00416.34
7.3.280.0060.01116.34
7.3.270.0060.01216.52
7.3.260.0140.00316.38
7.3.250.0110.00616.47
7.3.240.0100.01416.46
7.3.230.0070.01116.48
7.3.210.0090.00916.36
7.3.200.0110.01016.38
7.3.190.0150.00616.31
7.3.180.0080.01416.27
7.3.170.0120.01216.54
7.3.160.0030.01516.48
7.3.120.0040.00714.86
7.2.330.0140.00316.78
7.2.320.0200.00316.62
7.2.310.0130.01016.46
7.2.300.0110.00716.79
7.2.290.0100.00716.30
7.2.00.0000.01119.19
7.1.100.0030.01218.01
7.1.70.0040.00416.98
7.1.60.0070.01819.40
7.1.50.0130.01016.70
7.1.00.0030.07722.28
7.0.200.2270.00314.54
7.0.140.0100.06722.08
7.0.120.0000.07722.21
7.0.60.0130.07319.97
7.0.50.0030.04017.86
7.0.40.0100.03317.72
7.0.30.0000.04317.69
7.0.20.0000.04717.75
7.0.10.0070.03717.71
7.0.00.0000.04717.85
5.6.280.0070.07321.07
5.6.210.0030.08020.73
5.6.200.0030.04018.19
5.6.190.0030.04018.14
5.6.180.0000.04318.25
5.6.170.0100.03318.29
5.6.160.0000.04318.19
5.6.150.0070.05318.18
5.6.140.0030.04018.15
5.6.130.0000.04318.26
5.6.120.0070.07718.17
5.6.110.0170.06718.14
5.6.100.0100.03718.18
5.6.90.0070.07718.17
5.6.80.0070.06017.53
5.6.70.0070.07717.54
5.6.60.0070.06317.56
5.6.50.0130.07317.67
5.6.40.0070.04717.54
5.6.30.0100.07717.61
5.6.20.0170.06317.63
5.6.10.0100.07717.57
5.6.00.0070.08017.54
5.5.350.0070.07720.40
5.5.340.0070.03718.03
5.5.330.0030.03717.99
5.5.320.0070.03317.95
5.5.310.0000.04318.08
5.5.300.0000.04017.98
5.5.290.0000.04318.05
5.5.280.0070.07317.94
5.5.270.0100.07317.94
5.5.260.0030.07317.93
5.5.250.0070.08017.74
5.5.240.0130.06317.33
5.5.230.0100.08017.45
5.5.220.0030.06317.41
5.5.210.0000.06317.37
5.5.200.0030.08017.36
5.5.190.0000.07717.36
5.5.180.0170.06717.34
5.5.160.0070.07717.27
5.5.150.0030.07717.42
5.5.140.0070.05717.32
5.5.130.0130.06717.42
5.5.120.0100.05717.32
5.5.110.0070.05317.38
5.5.100.0200.06017.26
5.5.90.0030.07317.32
5.5.80.0000.07717.20
5.5.70.0070.04017.32
5.5.60.0100.07017.25
5.5.50.0030.07317.17
5.5.40.0000.07717.22
5.5.30.0070.03717.34
5.5.20.0100.07317.16
5.5.10.0300.04017.28
5.5.00.0100.07717.18
5.4.450.0070.05019.43
5.4.440.0170.07319.43
5.4.430.0070.07019.37
5.4.420.0000.06719.44
5.4.410.0070.04719.08
5.4.400.0070.07019.14
5.4.390.0100.06319.12
5.4.380.0100.08019.04
5.4.370.0070.07719.09
5.4.360.0070.08019.04
5.4.350.0000.07719.08
5.4.340.0100.07019.15
5.4.320.0130.07319.00
5.4.310.0100.07019.10
5.4.300.0030.06319.01
5.4.290.0030.08019.14
5.4.280.0070.05019.04
5.4.270.0070.08019.09
5.4.260.0100.07719.13
5.4.250.0100.06719.02
5.4.240.0030.08318.88
5.4.230.0070.07319.02
5.4.220.0030.06019.04
5.4.210.0030.04318.94
5.4.200.0100.03318.88
5.4.190.0100.03719.02
5.4.180.0130.07318.97
5.4.170.0070.07719.03
5.4.160.0100.07319.04
5.4.150.0000.05719.25
5.4.140.0000.04716.39
5.4.130.0000.03716.37
5.4.120.0070.05316.39
5.4.110.0100.07316.44
5.4.100.0130.07016.39
5.4.90.0130.05716.55
5.4.80.0000.04016.41
5.4.70.0100.07016.39
5.4.60.0070.06016.36
5.4.50.0070.06716.45
5.4.40.0100.05716.46
5.4.30.0100.05016.45
5.4.20.0100.05316.39
5.4.10.0070.04316.41
5.4.00.0100.03315.84
5.3.290.0070.07714.72
5.3.280.0070.03714.59
5.3.270.0100.05014.61
5.3.260.0030.08314.67
5.3.250.0100.07314.57
5.3.240.0000.04014.67
5.3.230.0030.05014.55
5.3.220.0000.04014.58
5.3.210.0100.07314.42
5.3.200.0070.07314.62
5.3.190.0000.07014.62
5.3.180.0070.05314.63
5.3.170.0070.07314.61
5.3.160.0070.07314.54
5.3.150.0100.05014.59
5.3.140.0030.05714.60
5.3.130.0100.07314.61
5.3.120.0200.03314.54
5.3.110.0030.04714.51
5.3.100.0030.03713.88
5.3.90.0030.07314.08
5.3.80.0000.08714.05
5.3.70.0070.04314.11
5.3.60.0100.05014.03
5.3.50.0000.08313.96
5.3.40.0000.07714.16
5.3.30.0070.03713.97
5.3.20.0070.03313.72
5.3.10.0070.04713.74
5.3.00.0100.06013.61
5.2.170.0130.05711.22
5.2.160.0030.05311.14
5.2.150.0030.04011.04
5.2.140.0100.02311.20
5.2.130.0030.06711.13
5.2.120.0030.06011.14
5.2.110.0070.03011.07
5.2.100.0100.05711.14
5.2.90.0100.05711.14
5.2.80.0030.03711.14
5.2.70.0100.06011.19
5.2.60.0070.04311.14
5.2.50.0070.03710.91
5.2.40.0030.04011.01
5.2.30.0070.03311.02
5.2.20.0000.03711.05
5.2.10.0070.06010.95
5.2.00.0070.03010.64
5.1.60.0070.0539.98
5.1.50.0100.05010.07
5.1.40.0070.0509.98
5.1.30.0030.04710.40
5.1.20.0130.04710.38
5.1.10.0030.05710.05
5.1.00.0000.0379.90
5.0.50.0000.0408.77
5.0.40.0070.0408.63
5.0.30.0030.0638.29
5.0.20.0030.0208.19
5.0.10.0030.0438.22
5.0.00.0000.0678.08
4.4.90.0000.0377.86
4.4.80.0070.0237.86
4.4.70.0000.0207.86
4.4.60.0070.0207.86
4.4.50.0000.0207.86
4.4.40.0000.0307.86
4.4.30.0000.0407.86
4.4.20.0030.0377.86
4.4.10.0000.0377.86
4.4.00.0030.0577.86
4.3.110.0030.0207.86
4.3.100.0030.0377.86
4.3.90.0000.0377.86
4.3.80.0000.0437.86
4.3.70.0000.0207.86
4.3.60.0100.0307.86
4.3.50.0070.0337.86
4.3.40.0100.0477.86
4.3.30.0030.0337.86
4.3.20.0000.0277.86
4.3.10.0000.0307.86
4.3.00.0000.0237.86

preferences:
61.17 ms | 400 KiB | 5 Q