3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { function k(){ return "k"; } function j(){ $a = $this->k(); return $this->$a(); } // assign k() to a variable function m(){ $a = "k"; $this->$a(); } // assign the name "k" to a variable }; $d = new C(); var_dump($d->j());

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)
8.3.60.0090.01216.63
8.3.50.0070.00718.11
8.3.40.0040.01919.04
8.3.30.0070.00718.60
8.3.20.0000.00824.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.180.0090.00625.92
8.2.170.0060.00922.96
8.2.160.0130.00022.96
8.2.150.0000.00825.66
8.2.140.0060.00324.66
8.2.130.0110.00326.16
8.2.120.0050.00226.35
8.2.110.0100.00020.53
8.2.100.0100.00017.93
8.2.90.0040.00419.23
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0000.00717.68
8.2.50.0000.00818.07
8.2.40.0050.00317.96
8.2.30.0040.00417.99
8.2.20.0000.00817.88
8.2.10.0080.00019.05
8.2.00.0030.00519.17
8.1.280.0140.00725.92
8.1.270.0000.00823.99
8.1.260.0030.00628.09
8.1.250.0120.00328.09
8.1.240.0030.00620.96
8.1.230.0030.00917.45
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0060.00317.23
8.1.180.0060.00318.10
8.1.170.0030.00518.59
8.1.160.0000.00818.74
8.1.150.0000.00718.82
8.1.140.0040.00418.81
8.1.130.0000.00720.14
8.1.120.0000.00717.34
8.1.110.0000.00817.38
8.1.100.0000.00817.29
8.1.90.0040.00417.40
8.1.80.0030.00617.37
8.1.70.0040.00417.27
8.1.60.0000.00817.48
8.1.50.0050.00317.38
8.1.40.0000.00817.57
8.1.30.0040.00417.61
8.1.20.0000.00717.49
8.1.10.0040.00417.41
8.1.00.0030.00617.29
8.0.300.0040.00418.77
8.0.290.0050.00216.75
8.0.280.0100.00018.42
8.0.270.0070.00018.00
8.0.260.0090.00018.43
8.0.250.0000.00616.89
8.0.240.0000.00816.83
8.0.230.0000.00816.82
8.0.220.0060.00316.71
8.0.210.0030.00316.82
8.0.200.0000.00716.83
8.0.190.0040.00416.91
8.0.180.0000.00816.95
8.0.170.0000.00916.82
8.0.160.0070.00016.86
8.0.150.0000.00816.77
8.0.140.0080.00016.76
8.0.130.0030.00313.24
8.0.120.0000.00816.72
8.0.110.0000.00716.89
8.0.100.0000.00716.86
8.0.90.0040.00416.85
8.0.80.0070.00816.87
8.0.70.0030.00516.88
8.0.60.0040.00416.86
8.0.50.0050.00216.83
8.0.30.0180.00016.82
8.0.20.0130.00616.96
8.0.10.0000.00816.86
8.0.00.0060.01216.50
7.4.330.0030.00315.55
7.4.320.0030.00316.46
7.4.300.0060.00016.63
7.4.290.0040.00416.45
7.4.280.0050.00316.50
7.4.270.0060.00016.62
7.4.260.0050.00013.21
7.4.250.0040.00416.45
7.4.240.0030.00316.57
7.4.230.0030.00616.54
7.4.220.0020.00516.52
7.4.210.0100.00716.57
7.4.200.0030.00316.41
7.4.130.0100.00816.54
7.4.120.0160.01016.54
7.4.110.0090.00916.41
7.4.100.0030.01416.54
7.4.90.0130.00316.59
7.4.80.0130.01019.39
7.4.70.0120.00916.30
7.4.60.0090.00916.33
7.4.50.0170.01416.29
7.4.40.0240.00616.40
7.4.30.0210.00716.32
7.4.20.0180.01216.18
7.4.10.0150.01516.36
7.4.00.0110.00716.36
7.3.330.0070.00016.27
7.3.320.0000.00613.06
7.3.310.0000.00716.13
7.3.300.0070.00016.29
7.3.290.0030.01216.24
7.3.260.0150.00916.22
7.3.240.0080.01016.28
7.3.230.0100.00716.21
7.3.210.0070.01016.45
7.3.200.0030.01316.28
7.3.190.0090.01216.30
7.3.180.0280.00616.40
7.3.170.0340.00716.18
7.3.160.0220.00716.21
7.3.150.0170.01316.45
7.3.140.0250.00716.37
7.3.130.0250.00916.36
7.3.120.0270.00416.36
7.3.110.0270.00716.39
7.3.100.0220.00516.41
7.3.90.0240.00716.05
7.3.80.0200.00815.86
7.3.70.0090.01916.12
7.3.60.0260.00616.13
7.3.50.0220.01116.18
7.3.40.0210.01116.24
7.3.30.0230.00816.18
7.3.20.0280.00415.96
7.3.10.0260.00516.24
7.3.00.0170.01416.24
7.2.330.0090.00916.32
7.2.320.0060.01216.37
7.2.310.0160.01816.08
7.2.300.0240.01416.41
7.2.290.0140.01416.19
7.2.280.0220.00716.45
7.2.270.0210.01316.26
7.2.260.0220.00916.53
7.2.250.0220.01116.54
7.2.240.0220.00616.29
7.2.230.0200.01216.48
7.2.220.0310.00016.23
7.2.210.0210.00716.46
7.2.200.0160.01616.28
7.2.190.0240.00816.30
7.2.180.0240.00916.16
7.2.170.0270.00816.29
7.2.160.0280.01016.32
7.2.150.0230.00916.38
7.2.140.0520.00716.35
7.2.130.0190.01316.41
7.2.120.0280.00716.27
7.2.110.0180.01416.26
7.2.100.0250.00616.57
7.2.90.0320.00016.45
7.2.80.0250.00216.30
7.2.70.0190.01116.30
7.2.60.0270.00616.20
7.2.50.0200.01116.49
7.2.40.0250.00616.19
7.2.30.0310.01116.51
7.2.20.0290.00816.41
7.2.10.0180.01316.32
7.2.00.0280.00917.98

preferences:
62.58 ms | 401 KiB | 5 Q