3v4l.org

run code in 300+ PHP versions simultaneously
<?php $numeric_fails = 0; $non_numeric_fails = 0; $iterations = 1000; for ($i = 0; $i < $iterations; $i++) { $my_key = uniqid("\x00"); $var = array(); $var[$my_key] = TRUE; foreach ($var as $key => $val) { if ($key === $my_key) { } else { if (is_numeric($my_key)) { $numeric_fails++; } else { $non_numeric_fails++; } } } } print "Numeric key fails: $numeric_fails".PHP_EOL; print "Non-Numeric key fails: $non_numeric_fails".PHP_EOL; print "Total fails: ".($numeric_fails + $non_numeric_fails).PHP_EOL;

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)
7.2.00.0030.01319.32
7.1.70.0000.01217.30
7.1.60.0120.01219.61
7.1.50.0080.01716.89
7.1.00.0100.07722.28
7.0.200.0000.01216.68
7.0.140.0130.07022.09
7.0.110.0070.04319.82
7.0.100.0000.07319.92
7.0.90.0100.04719.98
7.0.80.0100.08320.01
7.0.70.0070.08319.96
7.0.60.0070.08719.97
7.0.50.0070.08319.99
7.0.40.0100.08019.68
7.0.30.0070.06719.64
7.0.20.0170.08019.82
7.0.10.0070.08319.82
7.0.00.0170.07019.77
5.6.280.0130.07020.82
5.6.260.0030.05020.67
5.6.250.0070.04020.54
5.6.240.0030.06720.59
5.6.230.0070.09320.64
5.6.220.0170.07720.79
5.6.210.0230.04320.57
5.6.200.0230.06020.66
5.6.190.0100.09020.50
5.6.180.0070.07320.59
5.6.170.0130.07020.50
5.6.160.0170.07720.65
5.6.150.0070.09020.50
5.6.140.0100.08720.51
5.6.130.0170.07020.59
5.6.120.0070.06320.66
5.6.110.0070.09020.80
5.6.100.0070.09320.79
5.6.90.0170.07720.56
5.6.80.0200.07720.03
5.6.70.0070.07719.89
5.6.60.0130.07720.02
5.6.50.0100.07719.98
5.6.40.0070.08320.00
5.6.30.0030.07019.92
5.6.20.0100.07719.92
5.6.10.0100.08019.92
5.6.00.0070.08319.86
5.5.380.0100.03720.52
5.5.370.0000.04720.26
5.5.360.0030.09320.40
5.5.350.0230.07020.42
5.5.340.0200.07320.62
5.5.330.0030.09020.83
5.5.320.0170.08020.75
5.5.310.0200.07720.81
5.5.300.0170.07020.84
5.5.290.0070.05720.71
5.5.280.0100.08720.72
5.5.270.0070.08320.96
5.5.260.0100.08320.92
5.5.250.0000.06320.71
5.5.240.0100.08320.07
5.5.230.0070.08320.06
5.5.220.0070.08720.05
5.5.210.0030.08720.21
5.5.200.0070.09020.11
5.5.190.0170.07720.13
5.5.180.0100.08320.04
5.5.160.0200.07720.10
5.5.150.0100.08020.30
5.5.140.0200.07320.07
5.5.130.0070.08719.99
5.5.120.0100.08020.07
5.5.110.0130.08020.29
5.5.100.0070.08320.11
5.5.90.0130.07720.19
5.5.80.0070.06719.96
5.5.70.0130.07720.12
5.5.60.0130.07320.04
5.5.50.0070.08319.95
5.5.40.0030.06320.18
5.5.30.0130.07720.06
5.5.20.0170.07719.94
5.5.10.0130.08020.05
5.5.00.0130.03720.05
5.4.450.0100.08319.36
5.4.440.0070.08319.27
5.4.430.0070.08719.33
5.4.420.0030.07019.33
5.4.410.0170.07719.20
5.4.400.0100.07719.03
5.4.390.0170.07719.25
5.4.380.0100.08319.16
5.4.370.0130.08018.98
5.4.360.0100.07319.00
5.4.350.0070.08319.01
5.4.340.0070.07719.01
5.4.320.0100.08019.03
5.4.310.0200.07019.16
5.4.300.0070.07319.00
5.4.290.0130.07719.09
5.4.280.0170.07319.25
5.4.270.0100.07319.11
5.4.260.0130.07019.27
5.4.250.0170.07319.11
5.4.240.0270.06719.02
5.4.230.0070.08319.00
5.4.220.0100.06719.11
5.4.210.0070.08319.00
5.4.200.0130.07719.13
5.4.190.0130.07019.11
5.4.180.0170.07718.91
5.4.170.0100.08018.94
5.4.160.0170.06019.14
5.4.150.0130.07718.92
5.4.140.0030.08316.55
5.4.130.0100.07316.54
5.4.120.0030.08016.22
5.4.110.0070.07316.13
5.4.100.0070.07716.19
5.4.90.0070.07716.38
5.4.80.0130.07716.52
5.4.70.0370.05016.27
5.4.60.0030.09016.36
5.4.50.0100.07316.48
5.4.40.0100.08016.31
5.4.30.0100.07316.18
5.4.20.0130.07016.20
5.4.10.0200.06016.34
5.4.00.0230.06015.90
5.3.290.0130.07014.76
5.3.280.0100.08014.50
5.3.270.0070.07714.61
5.3.260.0070.08314.47
5.3.250.0130.07714.53
5.3.240.0070.08314.61
5.3.230.0100.08014.66
5.3.220.0130.08014.56
5.3.210.0100.07714.59
5.3.200.0100.07714.55
5.3.190.0130.07714.49
5.3.180.0070.08314.57
5.3.170.0000.06014.35
5.3.160.0170.07014.42
5.3.150.0070.04714.39
5.3.140.0100.08014.41
5.3.130.0130.06714.37
5.3.120.0070.08714.39
5.3.110.0070.08014.54
5.3.100.0100.07713.90
5.3.90.0070.08013.80
5.3.80.0230.06013.89
5.3.70.0100.07313.89
5.3.60.0030.07014.01
5.3.50.0130.06714.01
5.3.40.0170.07014.01
5.3.30.0100.07713.78
5.3.20.0030.07013.53
5.3.10.0100.07713.50
5.3.00.0070.07713.52
5.2.170.0030.06311.75
5.2.160.0200.05311.75
5.2.150.0100.06011.75
5.2.140.0070.06711.75
5.2.130.0070.06311.75
5.2.120.0070.06311.75
5.2.110.0130.05711.75
5.2.100.0030.05711.75
5.2.90.0070.06311.75
5.2.80.0070.06311.75
5.2.70.0070.06011.75
5.2.60.0000.05011.75
5.2.50.0070.07011.75
5.2.40.0000.07011.75
5.2.30.0170.05311.75
5.2.20.0100.05711.75
5.2.10.0100.06011.75
5.2.00.0070.05311.75
5.1.60.0030.06011.75
5.1.50.0100.05711.75
5.1.40.0070.05711.75
5.1.30.0070.06011.75
5.1.20.0130.05311.75
5.1.10.0100.04011.75
5.1.00.0000.06311.75
5.0.50.0170.04311.75
5.0.40.0030.05011.75
5.0.30.0000.04711.75
5.0.20.0070.05011.75
5.0.10.0030.05011.75
5.0.00.0070.07011.75
4.4.90.0070.03711.75
4.4.80.0030.04311.75
4.4.70.0030.04011.75
4.4.60.0000.04011.75
4.4.50.0100.03711.75
4.4.40.0070.05711.75
4.4.30.0100.03711.75
4.4.20.0030.03711.75
4.4.10.0000.04711.75
4.4.00.0130.05311.75
4.3.110.0030.04011.75
4.3.100.0030.04011.75
4.3.90.0030.03711.75
4.3.80.0070.05711.75
4.3.70.0000.04311.75
4.3.60.0030.03711.75
4.3.50.0100.03311.75
4.3.40.0100.05311.75
4.3.30.0070.04011.75
4.3.20.0030.04011.75
4.3.10.0100.03011.75
4.3.00.0000.04311.75

preferences:
35.16 ms | 401 KiB | 5 Q