3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a' => 'aa'); $x = new ArrayObject; $x[null] = array(); $x[null]['bar'] = 'foo'; ### this causes it # ---------------------------------------- function f($k) { $f = array('f' => 'ff'); return $f[$k]; } echo "ArrayObject dump:\n"; var_dump($x); echo "Non-existing array elements (current scope, function scope)\n"; var_dump($a['b'], f('b')); echo "Define a new variable: \$s='hohohoooo'\n"; $s = 'hohohoooo'; var_dump($a['b'], f('b')); echo "Define a new variable: \$n=1\n"; $n = 1; var_dump($a['b'], f('b'));

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)
8.3.60.0140.00318.55
8.3.50.0200.00921.09
8.3.40.0070.00718.88
8.3.30.0110.00418.83
8.3.20.0040.00418.98
8.3.10.0040.00421.08
8.3.00.0060.00319.78
8.2.180.0120.00316.75
8.2.170.0110.00422.96
8.2.160.0030.01120.35
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0000.00726.16
8.2.120.0070.00317.75
8.2.110.0040.00420.35
8.2.100.0040.00717.97
8.2.90.0060.00319.20
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0090.00017.93
8.2.50.0000.00818.07
8.2.40.0040.00418.34
8.2.30.0000.00719.36
8.2.20.0050.00217.58
8.2.10.0080.00017.75
8.2.00.0070.00317.77
8.1.280.0090.00625.92
8.1.270.0060.00322.14
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0040.00722.49
8.1.230.0080.00420.95
8.1.220.0040.00418.77
8.1.210.0030.00718.80
8.1.200.0030.00617.23
8.1.190.0000.00817.52
8.1.180.0040.00418.10
8.1.170.0030.00618.51
8.1.160.0040.00418.86
8.1.150.0000.00818.48
8.1.140.0040.00417.36
8.1.130.0040.00417.73
8.1.120.0030.00317.40
8.1.110.0060.00317.27
8.1.100.0040.00417.29
8.1.90.0040.00417.38
8.1.80.0030.00517.34
8.1.70.0000.00717.32
8.1.60.0060.00317.46
8.1.50.0080.00017.52
8.1.40.0030.00517.48
8.1.30.0040.00417.68
8.1.20.0000.00817.57
8.1.10.0070.00317.50
8.1.00.0040.00417.37
8.0.300.0030.00619.88
8.0.290.0030.00517.18
8.0.280.0070.00018.35
8.0.270.0070.00017.18
8.0.260.0030.00316.89
8.0.250.0000.00816.98
8.0.240.0040.00416.92
8.0.230.0070.00016.96
8.0.220.0000.00716.80
8.0.210.0000.00716.93
8.0.200.0030.00316.98
8.0.190.0040.00416.86
8.0.180.0000.00816.80
8.0.170.0030.00516.90
8.0.160.0050.00316.93
8.0.150.0070.00016.84
8.0.140.0050.00316.74
8.0.130.0000.00613.25
8.0.120.0060.00316.75
8.0.110.0000.00716.79
8.0.100.0030.00316.77
8.0.90.0000.00816.84
8.0.80.0070.00716.94
8.0.70.0050.00316.75
8.0.60.0000.00816.86
8.0.50.0000.00816.95
8.0.30.0160.00316.98
8.0.20.0130.00517.40
8.0.10.0040.00416.81
8.0.00.0100.00916.63
7.4.330.0030.00314.87
7.4.320.0070.00016.54
7.4.300.0040.00416.43
7.4.290.0030.00516.63
7.4.280.0000.00716.59
7.4.270.0000.00816.51
7.4.260.0000.00613.32
7.4.250.0030.00616.52
7.4.240.0000.00816.44
7.4.230.0030.00316.34
7.4.220.0110.00716.55
7.4.210.0070.01016.60
7.4.200.0000.00716.67
7.4.190.0030.00316.56
7.4.160.0080.00816.36
7.4.150.0100.01017.40
7.4.140.0110.00617.86
7.4.130.0130.00716.44
7.4.120.0040.01416.67
7.4.110.0100.01016.55
7.4.100.0120.00616.65
7.4.90.0120.00616.52
7.4.80.0070.01119.39
7.4.70.0070.01716.46
7.4.60.0060.01316.58
7.4.50.0000.00816.71
7.4.40.0100.00722.77
7.4.30.0070.01116.61
7.4.10.0050.00715.07
7.4.00.0050.01014.96
7.3.330.0050.00013.36
7.3.320.0000.00513.18
7.3.310.0000.00716.40
7.3.300.0000.00716.25
7.3.290.0040.01516.41
7.3.280.0060.00916.32
7.3.270.0150.00917.40
7.3.260.0120.00818.24
7.3.250.0070.01016.60
7.3.240.0130.00616.44
7.3.230.0070.01116.39
7.3.210.0090.00916.39
7.3.200.0120.00619.39
7.3.190.0130.01016.42
7.3.180.0060.01016.57
7.3.170.0100.00716.53
7.3.160.0120.01216.64
7.3.130.0130.00615.00
7.3.120.0050.01114.61
7.3.110.0000.01314.84
7.3.100.0040.01214.59
7.3.90.0100.00314.87
7.3.80.0030.01014.91
7.3.70.0030.01714.88
7.3.60.0080.00414.84
7.3.50.0000.01414.80
7.3.40.0070.00714.85
7.3.30.0120.00314.66
7.3.20.0040.01116.50
7.3.10.0070.00716.78
7.3.00.0060.00916.53
7.2.330.0090.01016.71
7.2.320.0070.01016.67
7.2.310.0100.01016.44
7.2.300.0000.01816.84
7.2.290.0040.01216.59
7.2.260.0070.01114.95
7.2.250.0080.01115.09
7.2.240.0090.00615.07
7.2.230.0060.00914.78
7.2.220.0090.00615.27
7.2.210.0070.01015.11
7.2.200.0110.01115.09
7.2.190.0100.00614.98
7.2.180.0030.01015.08
7.2.170.0070.00714.88
7.2.160.0060.01014.84
7.2.150.0000.01117.02
7.2.140.0070.00716.89
7.2.130.0080.00616.97
7.2.120.0030.00717.09
7.2.110.0040.00816.97
7.2.100.0070.00716.96
7.2.90.0120.00317.11
7.2.80.0120.00016.91
7.2.70.0060.00616.86
7.2.60.0040.01116.86
7.2.50.0130.00017.17
7.2.40.0070.00716.95
7.2.30.0100.00617.00
7.2.20.0070.00717.14
7.2.10.0030.00917.21
7.2.00.0050.01117.92
7.1.330.0060.00616.00
7.1.320.0070.00715.50
7.1.310.0030.01015.58
7.1.300.0040.00415.71
7.1.290.0080.00415.61
7.1.280.0060.00915.78
7.1.270.0030.00615.56
7.1.260.0100.00715.65
7.1.250.0040.00815.94
7.1.240.0080.00015.78
7.1.230.0040.01115.86
7.1.220.0120.00315.68
7.1.210.0040.01215.87
7.1.200.0070.01115.98
7.1.190.0030.01015.98
7.1.180.0030.00915.82
7.1.170.0100.00315.77
7.1.160.0100.00715.57
7.1.150.0000.01615.89
7.1.140.0060.00315.80
7.1.130.0030.01015.95
7.1.120.0080.00615.53
7.1.110.0100.00315.86
7.1.100.0800.01216.04
7.1.90.0000.01315.91
7.1.80.0120.00315.84
7.1.70.0080.00516.57
7.1.60.0050.00716.54
7.1.50.0050.00716.39
7.1.40.0020.01016.37
7.1.30.0070.00716.33
7.1.20.0020.01016.45
7.1.10.0030.00616.34
7.1.00.0020.00916.25
7.0.330.0000.01115.38
7.0.320.0100.00315.41
7.0.310.0000.01015.27
7.0.300.0000.01415.35
7.0.290.0090.00315.63
7.0.280.0130.00315.57
7.0.270.0070.00415.19
7.0.260.0070.00315.10
7.0.250.0040.00715.45
7.0.240.0030.00715.29
7.0.230.0030.01015.38
7.0.220.0040.00815.43
7.0.210.0040.00915.29
7.0.200.0030.00916.15
7.0.190.0070.00316.12
7.0.180.0040.00616.17
7.0.170.0000.00916.24
7.0.160.0050.00716.12
7.0.150.0020.00716.18
7.0.140.0000.01016.09
7.0.130.0010.01016.11
7.0.120.0040.00816.17
7.0.110.0020.00816.07
7.0.100.0020.00616.20
7.0.90.0060.00716.23
7.0.80.0020.00916.14
7.0.70.0040.00616.12
7.0.60.0060.00616.10
7.0.50.0030.00616.08
7.0.40.0010.01015.27
7.0.30.0040.00415.33
7.0.20.0040.00515.22
7.0.10.0070.00415.14
7.0.00.0030.00515.20
5.6.400.0040.01114.46
5.6.390.0040.00714.27
5.6.380.0070.00714.71
5.6.370.0070.00714.22
5.6.360.0000.01014.66
5.6.350.0130.00314.77
5.6.340.0040.01214.80
5.6.330.0040.01114.68
5.6.320.0100.00314.55
5.6.310.0100.00314.52
5.6.300.0080.02617.72
5.6.290.0070.02217.50
5.6.280.0080.02317.77
5.6.270.0050.02517.58
5.6.260.0070.02017.85
5.6.250.0030.02417.76
5.6.240.0070.02717.72
5.6.230.0070.02217.71
5.6.220.0040.02317.84
5.6.210.0050.02417.77
5.6.200.0030.03017.70
5.6.190.0050.02517.71
5.6.180.0060.02217.70
5.6.170.0050.02417.64
5.6.160.0050.02617.70
5.6.150.0000.02617.65
5.6.140.0030.02517.67
5.6.130.0020.03117.76
5.6.120.0060.02317.50
5.6.110.0080.02517.64
5.6.100.0100.01817.74
5.6.90.0060.02417.54
5.6.80.0080.01917.41
5.6.70.0100.01917.26
5.6.60.0060.02417.42
5.6.50.0050.02317.18
5.6.40.0020.02817.19
5.6.30.0040.02617.27
5.6.20.0020.02717.24
5.6.10.0060.02317.21
5.6.00.0090.01917.35
5.5.380.0000.02515.94
5.5.370.0070.01915.91
5.5.360.0080.02115.93
5.5.350.0060.02215.81
5.5.340.0060.02216.50
5.5.330.0050.02316.23
5.5.320.0040.02916.35
5.5.310.0030.02616.20
5.5.300.0050.02516.36
5.5.290.0050.02316.05
5.5.280.0050.02616.03
5.5.270.0050.02716.07
5.5.260.0090.02216.32
5.5.250.0030.02616.16
5.5.240.0020.03015.79
5.5.230.0050.02215.89
5.5.220.0070.02615.88
5.5.210.0050.03615.76
5.5.200.0060.02315.94
5.5.190.0040.02415.90
5.5.180.0020.02715.95
5.5.170.0080.00314.09
5.5.160.0050.03615.85
5.5.150.0070.02415.81
5.5.140.0020.02715.82
5.5.130.0030.02715.93
5.5.120.0070.02615.86
5.5.110.0050.02315.76
5.5.100.0050.02515.76
5.5.90.0020.03915.60
5.5.80.0070.04815.68
5.5.70.0050.02515.82
5.5.60.0020.02615.75
5.5.50.0050.02315.88
5.5.40.0020.02515.71
5.5.30.0060.02215.83
5.5.20.0050.02915.75
5.5.10.0020.02615.77
5.5.00.0070.02215.89
5.4.450.0050.02416.35
5.4.440.0060.02116.29
5.4.430.0030.02216.31
5.4.420.0030.02216.27
5.4.410.0060.02616.31
5.4.400.0050.02016.18
5.4.390.0050.02116.10
5.4.380.0000.02616.15
5.4.370.0080.02116.11
5.4.360.0020.02716.06
5.4.350.0050.02316.10
5.4.340.0050.02016.14
5.4.330.0000.00813.25
5.4.320.0030.02316.18
5.4.310.0020.02616.14
5.4.300.0030.02216.13
5.4.290.0020.02616.07
5.4.280.0030.04416.11
5.4.270.0040.02316.06
5.4.260.0070.02116.22
5.4.250.0090.02116.15
5.4.240.0100.01916.06
5.4.230.0050.02316.21
5.4.220.0070.01816.15
5.4.210.0050.02116.14
5.4.200.0050.02816.06
5.4.190.0030.02516.14
5.4.180.0030.02516.09
5.4.170.0030.02316.09
5.4.160.0050.02016.15
5.4.150.0040.02416.20
5.4.140.0030.02615.06
5.4.130.0030.04315.06
5.4.120.0070.01815.06
5.4.110.0020.02215.06
5.4.100.0030.02015.06
5.4.90.0140.02415.06
5.4.80.0020.02115.06
5.4.70.0050.01915.06
5.4.60.0070.03415.06
5.4.50.0040.02615.06
5.4.40.0070.01915.06
5.4.30.0030.02015.06
5.4.20.0050.02115.06
5.4.10.0040.02115.06
5.4.00.0020.02415.06
5.3.290.0050.02715.06
5.3.280.0050.02115.06
5.3.270.0060.02115.06
5.3.260.0050.02515.06
5.3.250.0060.02815.06
5.3.240.0000.02515.06
5.3.230.0030.02715.06
5.3.220.0080.02315.06
5.3.210.0060.01815.06
5.3.200.0030.02215.06
5.3.190.0070.02215.06
5.3.180.0010.02115.06
5.3.170.0000.03115.06
5.3.160.0000.02515.06
5.3.150.0120.02515.06
5.3.140.0030.02315.06
5.3.130.0070.02415.06
5.3.120.0130.02315.06
5.3.110.0070.02015.06
5.3.100.0000.02615.06
5.3.90.0020.02615.06
5.3.80.0070.03615.06
5.3.70.0050.02315.06
5.3.60.0030.02515.06
5.3.50.0040.01915.06
5.3.40.0050.01815.06
5.3.30.0080.01915.06
5.3.20.0080.03615.06
5.3.10.0050.01915.06
5.3.00.0040.02715.06
5.2.170.0070.03316.88
5.2.160.0030.02816.88
5.2.150.0030.03416.88
5.2.140.0030.03416.88
5.2.130.0060.02916.88
5.2.120.0000.03516.88
5.2.110.0190.02816.88
5.2.100.0070.03016.88
5.2.90.0030.03816.88
5.2.80.0000.03716.88
5.2.70.0000.03316.88
5.2.60.0000.05016.88
5.2.50.0060.02516.88
5.2.40.0000.04416.88
5.2.30.0070.04016.88
5.2.20.0040.03216.88
5.2.10.0070.02716.88
5.2.00.0000.04416.88
5.1.60.0060.02516.88
5.1.50.0030.02516.88
5.1.40.0070.02316.88
5.1.30.0060.02916.88
5.1.20.0000.02916.88
5.1.10.0030.02616.88
5.1.00.0030.03016.88
5.0.50.0070.02116.88
5.0.40.0100.02016.88
5.0.30.0000.03316.88
5.0.20.0060.01616.88
5.0.10.0040.01816.88
5.0.00.0030.03216.88
4.4.90.0030.01616.88
4.4.80.0000.01816.88
4.4.70.0060.01116.88
4.4.60.0030.01616.88
4.4.50.0000.01716.88
4.4.40.0000.02916.88
4.4.30.0040.01516.88
4.4.20.0040.01416.88
4.4.10.0030.01716.88
4.4.00.0070.04316.88
4.3.110.0030.01616.88
4.3.100.0090.00916.88
4.3.90.0000.02016.88
4.3.80.0030.02316.88
4.3.70.0000.01816.88
4.3.60.0050.01416.88
4.3.50.0030.01516.88
4.3.40.0000.02716.88
4.3.30.0000.01916.88
4.3.20.0000.01816.88
4.3.10.0060.01616.88
4.3.00.0000.01616.88

preferences:
45.83 ms | 401 KiB | 5 Q