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)); $v = $$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)
8.3.40.0110.00418.79
8.3.30.0090.00618.70
8.3.20.0040.00418.57
8.3.10.0040.00421.14
8.3.00.0000.00823.47
8.2.170.0090.00622.96
8.2.160.0090.00622.08
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0050.00319.56
8.2.110.0100.00020.44
8.2.100.0080.00317.77
8.2.90.0000.00819.17
8.2.80.0050.00317.97
8.2.70.0030.00517.61
8.2.60.0040.00418.05
8.2.50.0040.00418.07
8.2.40.0040.00418.09
8.2.30.0040.00419.35
8.2.20.0000.00717.68
8.2.10.0040.00417.64
8.2.00.0040.00417.70
8.1.270.0050.00323.99
8.1.260.0110.00426.35
8.1.250.0100.00028.09
8.1.240.0040.00422.56
8.1.230.0030.00720.96
8.1.220.0080.00018.77
8.1.210.0000.00818.91
8.1.200.0090.00317.48
8.1.190.0050.00317.53
8.1.180.0000.00818.10
8.1.170.0090.00018.52
8.1.160.0040.00418.84
8.1.150.0000.00818.66
8.1.140.0000.00817.47
8.1.130.0030.00317.70
8.1.120.0050.00317.43
8.1.110.0030.00617.41
8.1.100.0040.00417.45
8.1.90.0030.00517.43
8.1.80.0030.00317.50
8.1.70.0030.00317.50
8.1.60.0040.00417.47
8.1.50.0060.00317.47
8.1.40.0040.00417.44
8.1.30.0040.00417.67
8.1.20.0000.00917.69
8.1.10.0040.00417.43
8.1.00.0040.00417.53
8.0.300.0000.00820.02
8.0.290.0070.00017.18
8.0.280.0030.00318.47
8.0.270.0030.00317.19
8.0.260.0030.00316.88
8.0.250.0030.00617.04
8.0.240.0000.00916.91
8.0.230.0040.00416.94
8.0.220.0050.00316.91
8.0.210.0040.00416.97
8.0.200.0060.00316.99
8.0.190.0000.00817.00
8.0.180.0040.00416.89
8.0.170.0030.00316.99
8.0.160.0040.00416.97
8.0.150.0000.00716.97
8.0.140.0000.00816.81
8.0.130.0000.00613.39
8.0.120.0080.00016.84
8.0.110.0070.00016.80
8.0.100.0040.00416.91
8.0.90.0030.00516.78
8.0.80.0080.00717.03
8.0.70.0000.00716.95
8.0.60.0060.00317.02
8.0.50.0080.00017.00
8.0.30.0080.01117.30
8.0.20.0100.00917.40
8.0.10.0020.00517.12
8.0.00.0090.01116.87
7.4.330.0030.00314.88
7.4.320.0040.00416.52
7.4.300.0000.00616.53
7.4.290.0050.00316.66
7.4.280.0030.00316.58
7.4.270.0040.00416.52
7.4.260.0000.00513.18
7.4.250.0030.00516.46
7.4.240.0070.00016.45
7.4.230.0030.00316.70
7.4.220.0090.00916.56
7.4.210.0040.01016.53
7.4.200.0040.00416.51
7.4.190.0070.00016.70
7.4.160.0120.00316.39
7.4.150.0140.00317.40
7.4.140.0100.00717.86
7.4.130.0110.00516.52
7.4.120.0060.01116.53
7.4.110.0080.01116.46
7.4.100.0090.00916.54
7.4.90.0110.00616.50
7.4.80.0090.01119.39
7.4.70.0070.01016.45
7.4.60.0130.00316.58
7.4.50.0000.00916.47
7.4.40.0130.00622.52
7.4.30.0140.00316.54
7.4.00.0000.01314.86
7.3.330.0050.00013.36
7.3.320.0030.00313.32
7.3.310.0030.00316.36
7.3.300.0030.00316.31
7.3.290.0030.01316.32
7.3.280.0110.00616.36
7.3.270.0100.00617.40
7.3.260.0160.00718.24
7.3.250.0080.00816.56
7.3.240.0110.00716.40
7.3.230.0120.00816.39
7.3.210.0040.01216.60
7.3.200.0100.01119.39
7.3.190.0060.01116.41
7.3.180.0030.01316.30
7.3.170.0090.00616.45
7.3.160.0160.00316.38
7.3.120.0100.00314.66
7.2.330.0090.00916.46
7.2.320.0060.01116.33
7.2.310.0120.00616.83
7.2.300.0090.01216.72
7.2.290.0090.01216.79
7.2.00.0060.00619.14
7.1.100.0070.00718.11
7.1.70.0040.00417.18
7.1.60.0140.01019.40
7.1.50.0070.01717.01
7.1.00.0030.07722.36
7.0.200.0040.00416.46
7.0.140.0070.06722.09
7.0.80.0130.09319.98
7.0.70.0170.05019.98
7.0.60.0330.08719.99
7.0.50.0530.08320.24
7.0.40.0030.08020.14
7.0.30.0070.05020.05
7.0.20.0070.07320.07
7.0.10.0030.04320.04
7.0.00.0170.07320.07
5.6.280.0030.07320.86
5.6.230.0130.06720.69
5.6.220.0100.04320.47
5.6.210.0100.04320.77
5.6.200.0070.06721.01
5.6.190.0130.07021.01
5.6.180.0030.08721.10
5.6.170.0070.08321.05
5.6.160.0030.07721.17
5.6.150.0130.07021.06
5.6.140.0070.04020.96
5.6.130.0100.05721.06
5.6.120.0030.05021.04
5.6.110.0030.08721.02
5.6.100.0100.07321.00
5.6.90.0070.08320.92
5.6.80.0070.08020.45
5.6.70.0070.03320.34
5.6.60.0030.05720.42
5.6.50.0030.08320.34
5.6.40.0070.08320.41
5.6.30.0000.05020.47
5.6.20.0100.05020.26
5.6.10.0000.08020.32
5.6.00.0130.06020.30
5.5.370.0100.07720.37
5.5.360.0170.07020.38
5.5.350.0100.04020.46
5.5.340.0070.08720.93
5.5.330.0070.07720.80
5.5.320.0030.08320.63
5.5.310.0130.08020.74
5.5.300.0000.08720.79
5.5.290.0070.08020.83
5.5.280.0130.07320.76
5.5.270.0070.08720.82
5.5.260.0000.09020.84
5.5.250.0070.08320.59
5.5.240.0130.03320.16
5.5.230.0070.07720.15
5.5.220.0170.07320.30
5.5.210.0070.07720.31
5.5.200.0070.07020.13
5.5.190.0000.08320.09
5.5.180.0070.08320.18
5.5.160.0030.05020.20
5.5.150.0170.07320.22
5.5.140.0030.05320.25
5.5.130.0030.06020.13
5.5.120.0100.07020.27
5.5.110.0130.07320.22
5.5.100.0070.07720.10
5.5.90.0130.04020.16
5.5.80.0100.05020.10
5.5.70.0100.07320.01
5.5.60.0030.08020.09
5.5.50.0170.06720.05
5.5.40.0030.07319.93
5.5.30.0130.07320.13
5.5.20.0130.06720.08
5.5.10.0170.04020.07
5.5.00.0070.07320.04
5.4.450.0100.06019.23
5.4.440.0170.05719.20
5.4.430.0000.04019.41
5.4.420.0100.07719.41
5.4.410.0070.07319.07
5.4.400.0130.06019.13
5.4.390.0030.07019.03
5.4.380.0070.07319.18
5.4.370.0030.06019.05
5.4.360.0170.06719.09
5.4.350.0070.07319.14
5.4.340.0100.07719.09
5.4.320.0070.04018.88
5.4.310.0000.08319.20
5.4.300.0130.06318.89
5.4.290.0100.07019.04
5.4.280.0100.06019.18
5.4.270.0000.08018.90
5.4.260.0170.06719.16
5.4.250.0100.05319.06
5.4.240.0170.06719.22
5.4.230.0100.04319.13
5.4.220.0070.06719.12
5.4.210.0100.06718.84
5.4.200.0070.06319.12
5.4.190.0070.07718.84
5.4.180.0100.04719.22
5.4.170.0100.06319.11
5.4.160.0130.06718.88
5.4.150.0100.07719.04
5.4.140.0070.06016.46
5.4.130.0100.03016.45
5.4.120.0170.06316.32
5.4.110.0100.06316.50
5.4.100.0030.06316.43
5.4.90.0070.06716.43
5.4.80.0070.04316.25
5.4.70.0030.07016.51
5.4.60.0070.04016.39
5.4.50.0030.06016.47
5.4.40.0070.03716.34
5.4.30.0170.05016.40
5.4.20.0070.07316.47
5.4.10.0030.05316.48
5.4.00.0000.05716.00
5.3.290.0000.05014.78
5.3.280.0070.07714.62
5.3.270.0070.07314.68
5.3.260.0070.05014.66
5.3.250.0000.07014.70
5.3.240.0100.03314.53
5.3.230.0070.06014.66
5.3.220.0100.06314.50
5.3.210.0100.07014.71
5.3.200.0070.06314.58
5.3.190.0200.03014.50
5.3.180.0130.06314.61
5.3.170.0030.05314.65
5.3.160.0100.06314.54
5.3.150.0000.04314.58
5.3.140.0030.03714.54
5.3.130.0030.05314.65
5.3.120.0030.04014.69
5.3.110.0000.07314.68
5.3.100.0030.07013.97
5.3.90.0000.06714.13
5.3.80.0000.06014.13
5.3.70.0030.04314.11
5.3.60.0070.06014.05
5.3.50.0030.07013.87
5.3.40.0100.06314.05
5.3.30.0070.07013.79
5.3.20.0070.03713.62
5.3.10.0030.04313.67
5.3.00.0070.04713.70
5.2.170.0000.03311.57
5.2.160.0070.03311.57
5.2.150.0100.03011.57
5.2.140.0030.04711.57
5.2.130.0000.03011.57
5.2.120.0070.05311.57
5.2.110.0100.05311.57
5.2.100.0070.05711.57
5.2.90.0000.03011.57
5.2.80.0030.02711.57
5.2.70.0030.03711.57
5.2.60.0030.06711.57
5.2.50.0000.03711.57
5.2.40.0030.05311.57
5.2.30.0030.03011.57
5.2.20.0070.04311.57
5.2.10.0100.04011.57
5.2.00.0100.05311.57
5.1.60.0070.04711.57
5.1.50.0030.05311.57
5.1.40.0030.05011.57
5.1.30.0070.05011.57
5.1.20.0070.05311.57
5.1.10.0030.04711.57
5.1.00.0130.04011.57
5.0.50.0030.03711.57
5.0.40.0030.02311.57
5.0.30.0070.05011.57
5.0.20.0030.04011.57
5.0.10.0000.02711.57
5.0.00.0000.06711.57
4.4.90.0000.02011.57
4.4.80.0000.03711.57
4.4.70.0000.03011.57
4.4.60.0000.04011.57
4.4.50.0000.03711.57
4.4.40.0030.02011.57
4.4.30.0030.03311.57
4.4.20.0030.02711.57
4.4.10.0000.03711.57
4.4.00.0030.05011.57
4.3.110.0000.04011.57
4.3.100.0030.01711.57
4.3.90.0030.03311.57
4.3.80.0030.03311.57
4.3.70.0000.03711.57
4.3.60.0000.03711.57
4.3.50.0030.03711.57
4.3.40.0000.05011.57
4.3.30.0000.03311.57
4.3.20.0030.02311.57
4.3.10.0030.03711.57
4.3.00.0030.03311.57

preferences:
39.27 ms | 400 KiB | 5 Q