3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set("display_errors","On"); error_reporting(E_ALL); function without($var){ echo "Certain death\n"; $var.='die fucker DIE! ajajajajajajjjkajklsdjklasjdklasd'; echo memory_get_usage(), PHP_EOL; } function with(&$var){ echo "Alive\n"; echo memory_get_usage(), PHP_EOL; $var.="FUCK!"; } $str = str_repeat('foo', 10000000); echo memory_get_usage(), PHP_EOL; echo "END\n"; with($str); without($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)
7.2.00.2110.01376.50
7.1.70.0100.02374.17
7.1.60.0140.03274.72
7.1.50.0920.02074.34
7.1.00.0100.08779.44
7.0.201.5010.02073.90
7.0.140.0070.08779.26
7.0.111.1930.06376.96
7.0.100.9900.09077.02
7.0.90.9130.07776.94
7.0.80.3700.04777.01
7.0.70.2870.04076.91
7.0.60.4230.05376.97
7.0.50.1600.04776.88
7.0.40.1800.05076.71
7.0.30.1630.05376.71
7.0.20.2170.04376.66
7.0.10.3070.05776.67
7.0.00.6300.04776.75
5.6.280.0100.08378.08
5.6.260.0370.08377.97
5.6.250.0100.07777.89
5.6.240.0230.08377.91
5.6.230.0230.04777.87
5.6.220.0270.04777.70
5.6.210.0330.03077.84
5.6.200.0230.03777.85
5.6.190.0300.08077.89
5.6.180.0200.04777.85
5.6.170.0330.03377.84
5.6.160.0330.08377.94
5.6.150.0170.09777.93
5.6.140.0330.08777.93
5.6.130.0330.03377.82
5.6.120.0300.06378.09
5.6.110.0370.09377.79
5.6.100.0270.11377.92
5.6.90.0330.09077.80
5.6.80.0400.06377.18
5.6.70.0300.05077.30
5.6.60.0170.05077.07
5.6.50.0430.07377.34
5.6.40.0300.08377.17
5.6.30.0370.09377.28
5.6.20.0430.07777.18
5.6.10.0270.09077.21
5.6.00.0370.09077.06
5.5.380.0230.04074.82
5.5.370.0230.04774.77
5.5.360.0170.05074.90
5.5.350.0270.04074.77
5.5.340.0170.04375.18
5.5.330.0170.04075.23
5.5.320.0230.04375.25
5.5.310.0230.04375.05
5.5.300.0370.07775.13
5.5.290.0300.06075.19
5.5.280.0400.08775.35
5.5.270.0230.09375.21
5.5.260.0330.06775.34
5.5.250.0330.07775.13
5.5.240.0170.08074.70
5.5.230.0170.05374.66
5.5.220.0270.08374.75
5.5.210.0170.04774.53
5.5.200.0330.07374.69
5.5.190.0230.09374.40
5.5.180.0200.04774.48
5.5.160.0330.07074.61
5.5.150.0200.05074.53
5.5.140.0300.08074.50
5.5.130.0330.07074.48
5.5.120.0230.09074.68
5.5.110.0300.09374.52
5.5.100.0330.05774.31
5.5.90.0230.08774.61
5.5.80.0470.09774.40
5.5.70.0230.04774.36
5.5.60.0130.05374.52
5.5.50.0230.03774.49
5.5.40.0130.04774.36
5.5.30.0300.06774.46
5.5.20.0330.08074.36
5.5.10.0300.08774.60
5.5.00.0270.04774.58
5.4.450.0300.03376.57
5.4.440.0270.04376.50
5.4.430.0370.08376.47
5.4.420.0370.03776.54
5.4.410.0330.07376.39
5.4.400.0270.04776.52
5.4.390.0270.04076.16
5.4.380.0130.09376.12
5.4.370.0270.08076.52
5.4.360.0230.04076.16
5.4.350.0300.04776.22
5.4.340.0230.08776.27
5.4.320.0330.07076.16
5.4.310.0300.07776.33
5.4.300.0230.04776.14
5.4.290.0270.08376.20
5.4.280.0230.10076.51
5.4.270.0330.08376.12
5.4.260.0270.04776.34
5.4.250.0300.07776.42
5.4.240.0400.08776.21
5.4.230.0330.08376.42
5.4.220.0200.06076.14
5.4.210.0370.07076.29
5.4.200.0100.05376.10
5.4.190.0300.07776.51
5.4.180.0300.08376.50
5.4.170.0230.07376.25
5.4.160.0370.08776.15
5.4.150.0300.08776.13
5.4.140.0400.07773.69
5.4.130.0200.05373.73
5.4.120.0230.04373.59
5.4.110.0300.05073.63
5.4.100.0330.08073.71
5.4.90.0330.05073.61
5.4.80.0230.05373.53
5.4.70.0300.07073.61
5.4.60.0270.05773.63
5.4.50.0230.09373.58
5.4.40.0370.08073.66
5.4.30.0300.04073.67
5.4.20.0300.08373.46
5.4.10.0270.08373.54
5.4.00.0270.07373.10
5.3.290.0230.07371.80
5.3.280.0400.08371.75
5.3.270.0300.07371.69
5.3.260.0300.04771.70
5.3.250.0270.09071.83
5.3.240.0270.07371.67
5.3.230.0330.06071.74
5.3.220.0270.08371.62
5.3.210.0300.09371.71
5.3.200.0270.04071.62
5.3.190.0300.08771.79
5.3.180.0270.09071.63
5.3.170.0330.07371.67
5.3.160.0230.09071.63
5.3.150.0400.04071.71
5.3.140.0330.07371.69
5.3.130.0300.08071.52
5.3.120.0200.05771.86
5.3.110.0470.06771.69
5.3.100.0270.09371.34
5.3.90.0300.08371.25
5.3.80.0370.07771.04
5.3.70.0200.08071.12
5.3.60.0430.08371.25
5.3.50.0270.06070.97
5.3.40.0230.05070.80
5.3.30.0230.09770.91
5.3.20.0400.03770.74
5.3.10.0270.06770.67
5.3.00.0370.07770.89
5.2.170.0330.07368.01
5.2.160.0300.07068.32
5.2.150.0330.05768.08
5.2.140.0300.07768.16
5.2.130.0330.06368.02
5.2.120.0300.05768.04
5.2.110.0370.06367.88
5.2.100.0430.05768.10
5.2.90.0430.06068.11
5.2.80.0300.07068.02
5.2.70.0270.03368.01
5.2.60.0200.06368.07
5.2.50.0270.06368.02
5.2.40.0200.07367.91
5.2.30.0270.06767.89
5.2.20.0130.08767.85
5.2.10.0300.05067.85
5.2.00.0200.05739.25
5.1.60.0230.05738.32
5.1.50.0270.05338.27
5.1.40.0170.05738.61
5.1.30.0230.05038.71
5.1.20.0100.07038.75
5.1.10.0170.06038.30
5.1.00.0070.04038.39
5.0.50.0200.04336.88
5.0.40.0100.03336.73
5.0.30.0200.05736.43
5.0.20.0130.02036.39
5.0.10.0270.04036.38
5.0.00.0130.05036.38
4.4.90.0230.03334.20
4.4.80.0130.04734.33
4.4.70.0100.03034.20
4.4.60.0230.03334.05
4.4.50.0200.02334.14
4.4.40.0200.05334.12
4.4.30.0230.01334.21
4.4.20.0200.04334.24
4.4.10.0100.03734.27
4.4.00.0130.06034.36
4.3.110.0100.04334.16
4.3.100.0070.02733.98
4.3.90.0030.04034.08
4.3.80.0070.07033.91
4.3.70.0100.02034.13
4.3.60.0130.02033.96
4.3.50.0100.04034.23
4.3.40.0130.02734.09
4.3.30.0100.04332.90
4.3.20.0170.03032.97
4.3.10.0200.03332.77
4.3.00.0200.03332.73

preferences:
36.03 ms | 400 KiB | 5 Q