3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mykey = uniqid("\x00"); $var[$mykey] = TRUE; foreach($var as $key => $val) { if ($key === $mykey) { echo 'You got it right'; } else { echo 'You got it wrong'; } }

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)
7.3.120.0080.00914.77
7.3.110.0010.01114.97
7.3.100.0070.00514.88
7.3.90.0050.01014.79
7.3.80.0060.00714.78
7.3.70.0050.00614.71
7.3.60.0080.00814.83
7.3.50.0070.00714.77
7.3.40.0070.00814.78
7.3.30.0040.01014.81
7.3.20.0040.01116.52
7.3.10.0040.01116.73
7.3.00.0080.00516.67
7.2.240.0050.01214.97
7.2.230.0070.00715.16
7.2.220.0040.00914.92
7.2.210.0060.00915.09
7.2.200.0070.00915.22
7.2.190.0100.00514.85
7.2.180.0070.00515.04
7.2.170.0030.01414.89
7.2.160.0060.00614.94
7.2.150.0050.00616.90
7.2.140.0050.01216.85
7.2.130.0030.01016.93
7.2.120.0080.00717.00
7.2.110.0000.01616.87
7.2.100.0090.00516.98
7.2.90.0040.01116.91
7.2.80.0080.00716.88
7.2.70.0070.00516.85
7.2.60.0080.00717.00
7.2.50.0060.01016.73
7.2.40.0090.00716.80
7.2.30.0050.01017.01
7.2.20.0140.00216.83
7.2.10.0020.01316.67
7.2.00.0070.00817.71
7.1.330.0060.00815.72
7.1.320.0080.00315.81
7.1.310.0000.01115.83
7.1.300.0030.00615.84
7.1.290.0070.00715.58
7.1.280.0070.00815.58
7.1.270.0060.00815.73
7.1.260.0050.00715.74
7.1.250.0050.00715.57
7.1.70.0000.00717.13
7.1.60.0040.00719.61
7.1.50.0270.00016.84
7.1.00.0100.07022.32
7.0.200.0070.00316.66
7.0.140.0070.07022.01
7.0.60.0100.08319.93
7.0.50.0070.05017.77
7.0.40.0100.08020.24
7.0.30.0600.05320.18
7.0.20.0200.05720.19
7.0.10.0300.07720.16
7.0.00.0170.06320.01
5.6.280.0000.07321.07
5.6.210.0070.06720.75
5.6.200.0100.07718.22
5.6.190.0070.09320.77
5.6.180.0270.06720.64
5.6.170.0330.06020.40
5.6.160.0070.04020.46
5.6.150.0130.07318.20
5.6.140.0170.07018.14
5.6.130.0100.05718.11
5.6.120.0100.05021.15
5.6.110.0130.06020.97
5.6.100.0000.04320.98
5.6.90.0200.05720.96
5.6.80.0070.04320.40
5.6.70.0430.06020.37
5.5.350.0030.06020.36
5.5.340.0070.04718.00
5.5.330.0070.04320.15
5.5.320.0230.06320.28
5.5.310.0100.04720.26
5.5.300.0270.03317.88
5.5.290.0130.06717.91
5.5.280.0100.03720.86
5.5.270.0030.04720.73
5.5.260.0100.03320.75
5.5.250.0100.07020.57
5.5.240.0100.06720.16
5.4.450.1730.05319.16
5.4.440.1570.03719.57
5.4.430.1600.03719.16
5.4.420.1670.04019.46
5.4.410.1530.04019.36
5.4.400.1570.03319.21
5.4.390.0730.03718.69
5.4.380.0170.02319.01
5.4.370.0030.03718.84
5.4.360.1000.04318.72
5.4.350.1500.04319.11
5.4.340.1570.03718.69
5.4.320.1800.05019.16
5.4.310.1670.04319.04
5.4.300.1570.03319.02
5.4.290.1870.04018.99
5.4.280.1570.03319.21
5.4.270.1700.03319.11
5.4.260.1600.04018.79
5.4.250.1630.03718.98
5.4.240.1730.04718.98
5.4.230.1670.04319.20
5.4.220.1630.03719.15
5.4.210.1630.04018.83
5.4.200.1700.04719.15
5.4.190.1600.04319.00
5.4.180.1830.03718.83
5.4.170.1500.04018.96
5.4.160.1570.03018.77
5.4.150.1770.04018.80
5.4.140.1700.04016.44
5.4.130.1800.03316.35
5.4.120.1770.04316.37
5.4.110.0970.04716.50
5.4.100.0070.07016.46
5.4.90.0070.04316.42
5.4.80.1330.05016.16
5.4.70.1700.03716.44
5.4.60.1770.03716.33
5.4.50.1600.03716.37
5.4.40.1500.03316.17
5.4.30.1800.04716.16
5.4.20.1830.04716.36
5.4.10.1630.04316.21
5.4.00.1530.03315.70
5.3.290.1800.04014.51
5.3.280.1470.04014.44
5.3.270.0930.03314.59
5.3.260.0000.05714.55
5.3.250.0030.04314.52
5.3.240.1100.04014.58
5.3.230.1730.04714.43
5.3.220.1770.04014.39
5.3.210.1570.03014.55
5.3.200.1400.04314.61
5.3.190.1700.04714.62
5.3.180.1800.04314.39
5.3.170.1470.03314.43
5.3.160.1570.03314.50
5.3.150.1670.04714.50
5.3.140.1530.04714.46
5.3.130.2130.03014.55
5.3.120.0170.03714.40
5.3.110.0230.04014.64
5.3.100.0230.06313.98
5.3.90.0070.05713.97
5.3.80.0200.06313.86
5.3.70.0170.04713.98
5.3.60.0230.06713.84
5.3.50.0170.04313.80
5.3.40.0170.04013.80
5.3.30.0230.02713.71
5.3.20.0170.03313.68
5.3.10.0200.03013.51
5.3.00.0230.03713.46
5.2.170.0130.04310.98
5.2.160.0230.02010.98
5.2.150.0100.04710.98
5.2.140.0270.05311.08
5.2.130.0230.05010.94
5.2.120.0030.04010.95
5.2.110.0170.02310.98
5.2.100.0170.02311.15
5.2.90.0070.03311.15
5.2.80.0130.02710.93
5.2.70.0130.02710.95
5.2.60.0130.02710.88
5.2.50.0170.02710.90
5.2.40.0070.03010.85
5.2.30.0130.02711.02
5.2.20.0100.03010.86
5.2.10.0070.03010.88
5.2.00.0100.04310.68
5.1.60.0170.01710.00
5.1.50.0070.0279.88
5.1.40.0130.0279.86
5.1.30.0100.04010.34
5.1.20.0030.04710.50
5.1.10.0130.03310.11
5.1.00.0130.02310.17
5.0.50.0070.0208.63
5.0.40.0070.0178.41
5.0.30.0100.0278.31
5.0.20.0070.0208.35
5.0.10.0070.0208.16
5.0.00.0030.0338.38
4.4.90.0030.0177.85
4.4.80.0030.0177.85
4.4.70.0070.0137.85
4.4.60.0030.0177.85
4.4.50.0030.0177.85
4.4.40.0070.0307.85
4.4.30.0070.0137.85
4.4.20.0070.0237.85
4.4.10.0030.0177.85
4.4.00.0070.0307.85
4.3.110.0070.0307.85
4.3.100.0070.0207.85
4.3.90.0100.0107.85
4.3.80.0030.0277.85
4.3.70.0100.0137.85
4.3.60.0030.0177.85
4.3.50.0030.0177.85
4.3.40.0070.0237.85
4.3.30.0030.0177.85
4.3.20.0030.0207.85
4.3.10.0000.0177.85
4.3.00.0030.0137.85

preferences:
32.4 ms | 400 KiB | 5 Q