3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 2; $str = "aaaaabbbbbcccdddd"; echo str_replace('a', 'z', $str, $var); echo $var;

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)
8.3.40.0070.01418.70
8.3.30.0110.00418.50
8.3.20.0080.00018.42
8.3.10.0040.00421.10
8.3.00.0050.00323.64
8.2.170.0100.00722.96
8.2.160.0060.00918.91
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00720.95
8.2.110.0090.00020.35
8.2.100.0060.00617.91
8.2.90.0060.00319.27
8.2.80.0070.00019.39
8.2.70.0040.00717.38
8.2.60.0060.00318.03
8.2.50.0000.00818.07
8.2.40.0030.00518.34
8.2.30.0070.00019.47
8.2.20.0050.00217.55
8.2.10.0050.00217.67
8.2.00.0080.00017.68
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00022.54
8.1.230.0100.00020.97
8.1.220.0000.00818.77
8.1.210.0040.00418.95
8.1.200.0060.00317.35
8.1.190.0040.00417.48
8.1.180.0040.00418.10
8.1.170.0000.00918.59
8.1.160.0070.00018.88
8.1.150.0000.00818.62
8.1.140.0000.00717.43
8.1.130.0030.00317.82
8.1.120.0020.00517.38
8.1.110.0040.00417.41
8.1.100.0070.00017.21
8.1.90.0000.00717.30
8.1.80.0050.00317.39
8.1.70.0030.00317.33
8.1.60.0040.00417.47
8.1.50.0000.00717.30
8.1.40.0040.00417.33
8.1.30.0040.00417.52
8.1.20.0080.00017.41
8.1.10.0000.00817.42
8.1.00.0020.00517.29
8.0.300.0000.00819.88
8.0.290.0040.00417.13
8.0.280.0000.00718.37
8.0.270.0070.00017.25
8.0.260.0040.00416.79
8.0.250.0000.00816.83
8.0.240.0000.00716.96
8.0.230.0070.00016.77
8.0.220.0030.00316.78
8.0.210.0030.00516.80
8.0.200.0000.00616.86
8.0.190.0050.00316.86
8.0.180.0070.00016.86
8.0.170.0030.00616.74
8.0.160.0030.00316.76
8.0.150.0000.00816.80
8.0.140.0000.00816.78
8.0.130.0000.00513.31
8.0.120.0030.00616.74
8.0.110.0040.00416.88
8.0.100.0040.00416.86
8.0.90.0020.00516.73
8.0.80.0080.01216.78
8.0.70.0040.00416.71
8.0.60.0070.00016.83
8.0.50.0030.00516.81
8.0.30.0030.01517.02
8.0.20.0080.01017.40
8.0.10.0050.00316.82
8.0.00.0080.01416.71
7.4.330.0060.00014.98
7.4.320.0030.00316.43
7.4.300.0000.00616.38
7.4.290.0000.00716.55
7.4.280.0000.00816.52
7.4.270.0030.00316.57
7.4.260.0050.00013.21
7.4.250.0000.00716.48
7.4.240.0060.00016.48
7.4.230.0000.00716.46
7.4.220.0110.00716.52
7.4.210.0070.01016.60
7.4.200.0030.00316.27
7.4.190.0030.00316.41
7.4.160.0000.01516.36
7.4.150.0110.00717.40
7.4.140.0070.01017.86
7.4.130.0130.00616.46
7.4.120.0120.00516.57
7.4.110.0070.01416.46
7.4.100.0140.01216.39
7.4.90.0100.01416.54
7.4.80.0080.01219.39
7.4.70.0170.00316.30
7.4.60.0100.00716.34
7.4.50.0080.00016.18
7.4.40.0090.00322.77
7.4.30.0070.01016.47
7.4.00.0040.01314.80
7.3.330.0050.00213.12
7.3.320.0030.00313.13
7.3.310.0030.00316.26
7.3.300.0030.00316.25
7.3.290.0070.00716.15
7.3.280.0080.01016.22
7.3.270.0180.00017.40
7.3.260.0100.00718.24
7.3.250.0110.00716.33
7.3.240.0030.01316.21
7.3.230.0040.01416.39
7.3.210.0070.01116.17
7.3.200.0090.00919.39
7.3.190.0100.01316.43
7.3.180.0040.01216.34
7.3.170.0090.00616.39
7.3.160.0110.00616.46
7.3.120.0070.01014.90
7.3.110.0070.01014.86
7.3.100.0060.00614.73
7.3.90.0000.01514.79
7.3.80.0080.00514.68
7.3.70.0060.00614.91
7.3.60.0000.01214.82
7.3.50.0030.01014.82
7.3.40.0030.00614.84
7.3.30.0050.00814.86
7.3.20.0030.01016.55
7.3.10.0070.00716.85
7.3.00.0030.00716.37
7.2.330.0100.00716.18
7.2.320.0070.01016.50
7.2.310.0000.01716.46
7.2.300.0080.00816.55
7.2.290.0120.00416.59
7.2.250.0000.01114.98
7.2.240.0090.00614.95
7.2.230.0070.00714.58
7.2.220.0070.00714.77
7.2.210.0130.00314.48
7.2.200.0030.01014.91
7.2.190.0030.01014.94
7.2.180.0030.01015.00
7.2.170.0060.00914.88
7.2.60.0000.01016.76
7.1.330.0030.01015.42
7.1.320.0030.00615.75
7.1.310.0080.00615.62
7.1.300.0080.00315.68
7.1.290.0070.00415.65
7.1.280.0080.00815.74
7.1.270.0070.00715.71
7.1.260.0000.01315.86
7.1.200.0080.00415.49
7.1.70.0000.00817.11
7.1.60.0070.01619.08
7.1.50.0060.00616.89
7.1.00.0070.03722.29
7.0.200.0050.00516.88
7.0.140.0030.07321.95
7.0.110.0670.08319.99
7.0.100.0670.08719.93
7.0.90.0670.07319.95
7.0.80.0470.07319.85
7.0.70.0770.08319.85
7.0.60.0770.07720.05
7.0.50.0170.07719.86
7.0.40.0100.03719.71
7.0.30.0000.08719.75
7.0.20.0000.04319.77
7.0.10.0030.04019.84
7.0.00.0000.04319.73
5.6.280.0100.06720.91
5.6.260.0100.07320.59
5.6.250.0130.07020.68
5.6.240.0070.08720.62
5.6.230.0000.05720.68
5.6.220.0130.07020.64
5.6.210.0100.08020.58
5.6.200.0100.08320.70
5.6.190.0030.07020.63
5.6.180.0000.04720.46
5.6.170.0070.03720.82
5.6.160.0070.04020.55
5.6.150.0100.03320.70
5.6.140.0000.04720.63
5.6.130.0070.04020.70
5.6.120.0030.04720.61
5.6.110.0070.05020.54
5.6.100.0100.03720.68
5.6.90.0070.05020.56
5.6.80.0030.04020.03
5.6.70.0100.05020.05
5.6.60.0000.05020.07
5.6.50.0030.04019.98
5.6.40.0070.03719.97
5.6.30.0030.05019.82
5.6.20.0100.03319.99
5.6.10.0070.05319.99
5.6.00.0030.03720.04
5.5.380.0100.07320.46
5.5.370.0000.07720.46
5.5.360.0170.06720.23
5.5.350.0170.07020.46
5.5.340.0100.04720.80
5.5.330.0200.06020.98
5.5.320.0100.03320.96
5.5.310.0030.04320.83
5.5.300.0100.04021.00
5.5.290.0030.04020.97
5.5.280.0030.08320.86
5.5.270.0030.04720.88
5.5.260.0070.04020.88
5.5.250.0130.06720.61
5.5.240.0070.05720.32
5.5.230.0130.03320.21
5.5.220.0000.04320.29
5.5.210.0030.04020.14
5.5.200.0000.04320.29
5.5.190.0000.04320.23
5.5.180.0070.03720.15
5.5.160.0030.04020.29
5.5.150.0000.04020.23
5.5.140.0070.03720.21
5.5.130.0070.03720.37
5.5.120.0030.05720.11
5.5.110.0030.03720.14
5.5.100.0070.05720.19
5.5.90.0000.04020.21
5.5.80.0070.03320.21
5.5.70.0030.03720.04
5.5.60.0030.03720.12
5.5.50.0070.03320.05
5.5.40.0070.07019.99
5.5.30.0030.08020.02
5.5.20.0070.07720.18
5.5.10.0070.07720.21
5.5.00.0200.04320.09
5.4.450.0000.04719.31
5.4.440.0070.04319.34
5.4.430.0130.05319.32
5.4.420.0170.06719.59
5.4.410.0100.03019.20
5.4.400.0030.06718.99
5.4.390.0000.04019.03
5.4.380.0000.04318.98
5.4.370.0030.03719.12
5.4.360.0030.05018.95
5.4.350.0030.03318.93
5.4.340.0030.04019.13
5.4.320.0070.03319.25
5.4.310.0070.03719.01
5.4.300.0030.03719.25
5.4.290.0000.05019.00
5.4.280.0030.03719.16
5.4.270.0070.03318.98
5.4.260.0000.04019.00
5.4.250.0070.03318.97
5.4.240.0070.07319.02
5.4.230.0030.05019.24
5.4.220.0100.04318.95
5.4.210.0030.06318.95
5.4.200.0070.07319.07
5.4.190.0100.06319.02
5.4.180.0100.07318.92
5.4.170.0000.06319.06
5.4.160.0070.07719.25
5.4.150.0000.09018.98
5.4.140.0070.07716.22
5.4.130.0200.06316.46
5.4.120.0100.04016.31
5.4.110.0070.04316.51
5.4.100.0030.08016.15
5.4.90.0100.06716.53
5.4.80.0070.07316.22
5.4.70.0070.06316.48
5.4.60.0000.07716.38
5.4.50.0070.07016.38
5.4.40.0000.07016.42
5.4.30.0030.07716.25
5.4.20.0070.06016.25
5.4.10.0130.06316.39
5.4.00.0070.07015.93
5.3.290.0070.03714.73
5.3.280.0030.03714.45
5.3.270.0070.07314.39
5.3.260.0100.07014.59
5.3.250.0170.05714.59
5.3.240.0100.07314.59
5.3.230.0070.07314.53
5.3.220.0130.06314.66
5.3.210.0030.08014.39
5.3.200.0100.06714.46
5.3.190.0030.07714.44
5.3.180.0100.07014.55
5.3.170.0100.04014.44
5.3.160.0070.07014.34
5.3.150.0030.08014.57
5.3.140.0070.04314.40
5.3.130.0070.07714.41
5.3.120.0100.07314.39
5.3.110.0000.08014.61
5.3.100.0030.07313.94
5.3.90.0070.07314.01
5.3.80.0000.07713.89
5.3.70.0030.05313.95
5.3.60.0070.07313.94
5.3.50.0030.07713.88
5.3.40.0070.06713.88
5.3.30.0200.06313.96
5.3.20.0100.06713.62
5.3.10.0030.04713.71
5.3.00.0100.07013.65
5.2.170.0000.06311.88
5.2.160.0070.05711.88
5.2.150.0100.05711.88
5.2.140.0070.05711.88
5.2.130.0030.06311.88
5.2.120.0000.05711.88
5.2.110.0030.06311.88
5.2.100.0130.05011.88
5.2.90.0100.05311.88
5.2.80.0130.05711.88
5.2.70.0070.06011.88
5.2.60.0030.06711.88
5.2.50.0030.06311.88
5.2.40.0070.05711.88
5.2.30.0070.06011.88
5.2.20.0070.03311.88
5.2.10.0070.06311.88
5.2.00.0070.05711.88
5.1.60.0070.05311.88
5.1.50.0030.05311.88
5.1.40.0130.04311.88
5.1.30.0130.03011.88
5.1.20.0030.05711.88
5.1.10.0030.05311.88
5.1.00.0000.03311.88
5.0.50.0000.05011.88
5.0.40.0070.04311.88
5.0.30.0030.07011.88
5.0.20.0070.04011.88
5.0.10.0070.04011.88
5.0.00.0070.06311.88
4.4.90.0030.03711.88
4.4.80.0000.03711.88
4.4.70.0000.03711.88
4.4.60.0070.03011.88
4.4.50.0000.03711.88
4.4.40.0000.03311.88
4.4.30.0000.03711.88
4.4.20.0030.03711.88
4.4.10.0000.03711.88
4.4.00.0030.03011.88
4.3.110.0030.02711.88
4.3.100.0000.03711.88
4.3.90.0000.03011.88
4.3.80.0000.05311.88
4.3.70.0070.03011.88
4.3.60.0030.03311.88
4.3.50.0030.03711.88
4.3.40.0000.05711.88
4.3.30.0000.03711.88
4.3.20.0030.03311.88
4.3.10.0030.03311.88
4.3.00.0000.02711.88

preferences:
37.6 ms | 400 KiB | 5 Q