3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i=0; $i<40; $i++) @$str .= '0'; var_dump($str);

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)
8.3.60.0140.00718.60
8.3.50.0220.00921.15
8.3.40.0170.00318.84
8.3.30.0140.00020.34
8.3.20.0080.00418.84
8.3.10.0030.00621.09
8.3.00.0050.00323.41
8.2.180.0040.01818.66
8.2.170.0140.00722.96
8.2.160.0140.00320.52
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0040.00419.72
8.2.110.0060.00322.34
8.2.100.0040.00817.84
8.2.90.0070.00019.27
8.2.80.0080.00018.16
8.2.70.0090.00317.63
8.2.60.0080.00017.93
8.2.50.0080.00018.07
8.2.40.0000.00818.09
8.2.30.0070.00019.43
8.2.20.0020.00517.71
8.2.10.0050.00317.80
8.2.00.0080.00017.80
8.1.270.0050.00323.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00623.84
8.1.230.0040.00821.06
8.1.220.0030.00618.77
8.1.210.0080.00418.96
8.1.200.0030.00917.25
8.1.190.0040.00417.53
8.1.180.0000.00818.10
8.1.170.0000.00818.39
8.1.160.0000.00718.80
8.1.150.0070.00018.63
8.1.140.0000.00717.46
8.1.130.0030.00317.39
8.1.120.0080.00017.35
8.1.110.0040.00417.51
8.1.100.0080.00017.44
8.1.90.0070.00017.35
8.1.80.0040.00317.48
8.1.70.0050.00317.28
8.1.60.0050.00317.48
8.1.50.0060.00317.36
8.1.40.0050.00317.49
8.1.30.0000.00817.66
8.1.20.0080.00017.63
8.1.10.0020.00517.53
8.1.00.0030.00517.45
8.0.300.0030.00419.98
8.0.290.0000.00717.18
8.0.280.0030.00318.57
8.0.270.0070.00017.17
8.0.260.0070.00017.00
8.0.250.0040.00417.02
8.0.240.0040.00417.00
8.0.230.0000.00717.07
8.0.220.0070.00017.01
8.0.210.0000.00716.97
8.0.200.0060.00017.03
8.0.190.0040.00417.03
8.0.180.0030.00716.86
8.0.170.0070.00016.89
8.0.160.0000.00716.89
8.0.150.0040.00416.77
8.0.140.0040.00416.92
8.0.130.0050.00013.33
8.0.120.0040.00416.92
8.0.110.0040.00416.82
8.0.100.0070.00016.76
8.0.90.0000.00716.84
8.0.80.0030.01216.90
8.0.70.0070.00016.80
8.0.60.0080.00016.82
8.0.50.0040.00416.77
8.0.30.0140.00417.21
8.0.20.0120.00917.40
8.0.10.0030.00516.95
8.0.00.0080.01116.72
7.4.330.0020.00216.84
7.4.320.0060.00016.42
7.4.300.0040.00416.49
7.4.290.0030.00416.52
7.4.280.0030.00316.50
7.4.270.0070.00016.37
7.4.260.0000.00613.27
7.4.250.0000.00816.47
7.4.240.0000.00716.61
7.4.230.0030.00316.43
7.4.220.0110.00716.64
7.4.210.0080.00616.52
7.4.200.0000.00716.59
7.4.190.0000.00716.68
7.4.160.0030.01316.57
7.4.150.0110.00817.40
7.4.140.0110.00617.86
7.4.130.0090.00816.45
7.4.120.0130.00416.48
7.4.110.0100.00716.42
7.4.100.0060.01216.50
7.4.90.0130.01016.38
7.4.80.0090.01219.39
7.4.70.0080.00816.37
7.4.60.0060.00916.50
7.4.50.0000.00816.59
7.4.40.0040.01122.77
7.4.30.0110.00716.44
7.4.00.0070.00715.21
7.3.330.0050.00013.07
7.3.320.0000.00513.11
7.3.310.0030.00316.41
7.3.300.0000.00616.34
7.3.290.0100.00316.37
7.3.280.0080.01016.27
7.3.270.0110.00717.40
7.3.260.0140.00518.24
7.3.250.0080.01116.36
7.3.240.0040.01216.33
7.3.230.0080.00816.39
7.3.210.0100.00616.17
7.3.200.0070.01119.39
7.3.190.0000.02116.55
7.3.180.0130.00316.56
7.3.170.0060.01516.56
7.3.160.0130.00716.48
7.3.120.0030.01014.97
7.3.10.0030.01016.65
7.3.00.0090.00616.64
7.2.330.0030.02016.49
7.2.320.0110.01116.64
7.2.310.0030.01316.39
7.2.300.0060.01016.63
7.2.290.0100.00716.34
7.2.130.0060.01016.47
7.2.120.0070.00716.81
7.2.110.0060.00917.13
7.2.100.0000.01316.81
7.2.90.0040.01116.69
7.2.80.0070.00716.86
7.2.70.0060.00617.03
7.2.60.0070.01117.09
7.2.50.0000.01416.73
7.2.40.0030.00716.81
7.2.30.0120.00317.07
7.2.20.0100.00316.94
7.2.10.0030.00717.02
7.2.00.0080.00818.05
7.1.250.0030.00715.79
7.1.100.0070.00718.07
7.1.70.0040.00716.82
7.1.60.0160.00619.17
7.1.50.0100.01316.78
7.1.00.0100.02722.46
7.0.200.0070.00416.88
7.0.140.0070.07322.15
7.0.100.0500.08320.00
7.0.90.0330.08019.91
7.0.80.0500.07320.13
7.0.70.0430.08319.92
7.0.60.0430.08019.86
7.0.50.0470.07020.36
7.0.40.0030.07720.15
7.0.30.0070.08720.05
7.0.20.0070.04320.11
7.0.10.0100.08320.07
7.0.00.0130.07019.94
5.6.280.0070.07020.77
5.6.250.0030.08020.61
5.6.240.0070.07720.73
5.6.230.0070.07720.52
5.6.220.0070.05020.47
5.6.210.0070.07720.60
5.6.200.0100.08020.95
5.6.190.0000.09320.91
5.6.180.0030.08321.02
5.6.170.0100.08021.06
5.6.160.0070.07721.11
5.6.150.0100.07721.07
5.6.140.0130.07321.02
5.6.130.0100.08021.05
5.6.120.0070.08021.07
5.6.110.0030.08321.07
5.6.100.0130.06721.00
5.6.90.0070.08021.06
5.6.80.0130.07020.46
5.6.70.0100.07720.43
5.6.60.0030.05320.48
5.6.50.0130.07020.32
5.6.40.0130.07020.52
5.6.30.0100.07720.40
5.6.20.0070.07720.37
5.6.10.0170.06320.48
5.6.00.0100.08020.38
5.5.380.0130.07320.34
5.5.370.0000.08320.34
5.5.360.0130.06320.37
5.5.350.0000.09020.38
5.5.340.0100.07720.89
5.5.330.0030.08720.77
5.5.320.0030.07320.82
5.5.310.0070.05020.88
5.5.300.0030.08720.91
5.5.290.0030.04320.92
5.5.280.0000.08720.83
5.5.270.0070.08320.82
5.5.260.0170.06720.87
5.5.250.0100.07720.73
5.5.240.0070.07720.26
5.5.230.0030.08320.28
5.5.220.0100.07720.17
5.5.210.0000.08720.17
5.5.200.0130.07020.26
5.5.190.0030.08320.23
5.5.180.0170.06320.20
5.5.160.0170.04019.98
5.5.150.0030.08020.24
5.5.140.0070.07719.98
5.5.130.0070.05720.26
5.5.120.0170.04020.18
5.5.110.0070.08320.07
5.5.100.0170.07020.11
5.5.90.0030.08320.10
5.5.80.0100.07319.97
5.5.70.0070.08020.14
5.5.60.0030.06020.05
5.5.50.0130.07020.09
5.5.40.0070.04720.14
5.5.30.0030.07719.99
5.5.20.0100.07020.05
5.5.10.0030.04320.03
5.5.00.0170.07320.11
5.4.450.0170.07019.47
5.4.440.0030.04319.38
5.4.430.0000.08019.36
5.4.420.0070.04019.27
5.4.410.0000.08319.23
5.4.400.0100.06719.24
5.4.390.0070.08019.13
5.4.380.0070.08318.82
5.4.370.0100.07319.14
5.4.360.0170.07018.94
5.4.350.0000.08319.09
5.4.340.0130.07019.04
5.4.320.0070.07719.04
5.4.310.0130.07019.23
5.4.300.0100.07319.06
5.4.290.0070.04318.82
5.4.280.0200.06718.83
5.4.270.0170.06718.96
5.4.260.0070.05018.94
5.4.250.0100.07019.02
5.4.240.0130.06719.09
5.4.230.0070.07319.04
5.4.220.0070.07718.89
5.4.210.0030.05019.02
5.4.200.0030.04718.99
5.4.190.0070.08019.02
5.4.180.0030.04019.19
5.4.170.0100.07718.96
5.4.160.0070.08019.21
5.4.150.0130.07019.04
5.4.140.0100.07316.33
5.4.130.0070.06716.43
5.4.120.0070.04316.09
5.4.110.0000.04316.38
5.4.100.0100.04016.26
5.4.90.0030.07316.40
5.4.80.0000.05016.38
5.4.70.0100.07016.30
5.4.60.0030.04716.38
5.4.50.0070.04316.31
5.4.40.0100.07016.36
5.4.30.0130.06716.28
5.4.20.0100.07016.33
5.4.10.0100.07316.23
5.4.00.0030.08015.80
5.3.290.0070.07314.62
5.3.280.0070.07314.46
5.3.270.0070.03714.46
5.3.260.0030.05014.42
5.3.250.0130.06714.45
5.3.240.0130.06014.45
5.3.230.0100.07014.59
5.3.220.0070.07014.41
5.3.210.0000.08014.50
5.3.200.0000.08014.56
5.3.190.0100.07014.42
5.3.180.0100.07014.55
5.3.170.0070.07714.52
5.3.160.0100.07314.55
5.3.150.0030.07714.50
5.3.140.0070.07714.56
5.3.130.0030.04714.39
5.3.120.0030.07314.53
5.3.110.0100.06014.53
5.3.100.0000.08013.88
5.3.90.0030.05013.84
5.3.80.0100.07014.00
5.3.70.0100.07013.99
5.3.60.0070.07013.96
5.3.50.0100.06713.90
5.3.40.0070.06713.80
5.3.30.0030.07313.86
5.3.20.0130.07013.64
5.3.10.0130.05313.60
5.3.00.0000.04313.61
5.2.170.0100.05310.93
5.2.160.0100.05311.14
5.2.150.0030.06311.13
5.2.140.0030.06011.13
5.2.130.0070.06010.96
5.2.120.0030.06310.95
5.2.110.0070.06011.02
5.2.100.0030.06311.17
5.2.90.0130.05010.96
5.2.80.0070.06011.01
5.2.70.0070.05711.11
5.2.60.0030.06311.07
5.2.50.0070.05710.81
5.2.40.0070.06010.96
5.2.30.0000.06310.93
5.2.20.0070.04710.94
5.2.10.0000.06310.84
5.2.00.0000.06010.82
5.1.60.0000.05310.11
5.1.50.0070.05010.11
5.1.40.0070.05010.11
5.1.30.0070.03710.42
5.1.20.0000.05310.46
5.1.10.0070.04710.14
5.1.00.0100.03010.12
5.0.50.0070.04710.11
5.0.40.0030.04310.11
5.0.30.0070.06010.11
5.0.20.0070.03710.11
5.0.10.0000.04310.11
5.0.00.0070.06310.11
4.4.90.0000.03710.11
4.4.80.0030.03310.11
4.4.70.0030.02010.11
4.4.60.0070.03010.11
4.4.50.0000.04010.11
4.4.40.0000.05010.11
4.4.30.0030.03710.11
4.4.20.0000.03710.11
4.4.10.0000.03310.11
4.4.00.0070.05010.11
4.3.110.0030.02710.11
4.3.100.0000.03710.11
4.3.90.0030.03010.11
4.3.80.0000.04710.11
4.3.70.0100.03010.11
4.3.60.0030.03310.11
4.3.50.0070.03310.11
4.3.40.0000.05010.11
4.3.30.0000.03710.11
4.3.20.0000.03710.11
4.3.10.0000.03710.11
4.3.00.0030.03710.11

preferences:
58.26 ms | 400 KiB | 5 Q