3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass; $obj->{123} = '456'; // defined property but unusable as obj->property; see below. print_r($obj); echo 'Via {123}: ' . $obj->{123},"\n"; if (isset($obj->{123})) { echo '123 is set',"\n";} if (property_exists($obj,123)) echo 'property 123 exists',"\n"; echo $obj->{123}; //echo "\n",$obj->123; // Parse error: ...unexpected '123' (T_LNUMBER), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' echo "\n..............................\n"; $obj->{'a123'} = $obj->{123}; print_r($obj); echo 'Via Property a123: ' . $obj->a123,"\n"; // making a hash out of property a $obj->a[123] = $obj->{123}; $obj->a["a123"] = $obj->{'a123'}; var_dump($obj); echo 'Via Property "a" and hashkey 123: ' . $obj->a[123],"\n"; // contrast: $obj = (object)array('123' => '456'); // '123' => 123 and identifers must be strings print_r($obj); echo $obj->{'123'},"\n"; // so "Undefined property: stdClass::$123" if (!property_exists($obj,'123')) echo 'property 123 does not exist',"\n"; $obj = new stdClass; $obj->name = "blabe"; echo "The rain in {$obj->name} ...";

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)
8.3.60.0060.01518.55
8.3.50.0270.00722.16
8.3.40.0060.01218.82
8.3.30.0040.01119.22
8.3.20.0040.00420.33
8.3.10.0080.00020.60
8.3.00.0050.00319.34
8.2.180.0160.00316.50
8.2.170.0040.01122.96
8.2.160.0040.01420.43
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0050.00326.16
8.2.120.0000.00822.06
8.2.110.0060.00322.10
8.2.100.0070.00717.91
8.2.90.0000.00817.75
8.2.80.0000.00817.97
8.2.70.0050.00318.05
8.2.60.0040.00418.22
8.2.50.0090.00018.10
8.2.40.0000.00920.07
8.2.30.0060.00318.14
8.2.20.0050.00317.83
8.2.10.0030.00518.13
8.2.00.0040.00417.73
8.1.280.0070.00725.92
8.1.270.0060.00323.96
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0090.00021.00
8.1.230.0070.00419.05
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0000.01017.23
8.1.180.0030.00618.10
8.1.170.0000.00818.65
8.1.160.0040.00421.94
8.1.150.0040.00418.82
8.1.140.0070.00017.43
8.1.130.0070.00017.89
8.1.120.0030.00417.55
8.1.110.0030.00617.38
8.1.100.0030.00417.42
8.1.90.0040.00417.51
8.1.80.0000.00717.48
8.1.70.0040.00417.49
8.1.60.0000.00817.59
8.1.50.0040.00417.58
8.1.40.0080.00017.54
8.1.30.0030.00617.47
8.1.20.0040.00417.57
8.1.10.0050.00217.61
8.1.00.0000.00817.51
8.0.300.0000.00818.77
8.0.290.0040.00416.88
8.0.280.0030.00318.47
8.0.270.0000.00717.33
8.0.260.0030.00317.16
8.0.250.0070.00017.11
8.0.240.0000.00616.91
8.0.230.0040.00417.06
8.0.220.0000.00716.96
8.0.210.0030.00517.02
8.0.200.0060.00017.02
8.0.190.0040.00417.06
8.0.180.0000.00716.98
8.0.170.0030.00616.84
8.0.160.0000.00717.10
8.0.150.0000.00816.96
8.0.140.0040.00416.96
8.0.130.0050.00013.36
8.0.120.0000.00817.01
8.0.110.0040.00416.88
8.0.100.0040.00416.86
8.0.90.0000.00817.03
8.0.80.0060.01016.93
8.0.70.0040.00416.89
8.0.60.0050.00216.96
8.0.50.0000.00716.92
8.0.30.0090.00917.33
8.0.20.0090.01017.40
8.0.10.0040.00416.95
8.0.00.0090.00916.87
7.4.330.0000.00515.02
7.4.320.0000.00616.54
7.4.300.0070.00016.63
7.4.290.0000.00716.59
7.4.280.0000.00716.59
7.4.270.0000.00716.59
7.4.260.0000.00716.48
7.4.250.0050.00316.44
7.4.240.0030.00516.37
7.4.230.0070.00016.72
7.4.220.0110.00816.51
7.4.210.0090.00616.63
7.4.200.0030.00316.66
7.4.160.0090.00616.55
7.4.150.0100.01017.40
7.4.140.0080.01017.86
7.4.130.0070.00916.50
7.4.120.0030.01416.60
7.4.110.0070.01016.43
7.4.100.0170.00516.36
7.4.90.0060.01116.49
7.4.80.0100.01319.39
7.4.70.0100.00716.51
7.4.60.0100.00716.50
7.4.50.0030.00616.68
7.4.40.0080.00816.52
7.4.30.0090.01216.48
7.4.00.0080.00815.19
7.3.330.0030.00313.09
7.3.320.0000.00613.27
7.3.310.0030.00316.42
7.3.300.0030.00316.26
7.3.290.0000.01716.39
7.3.280.0100.00616.36
7.3.270.0130.00617.40
7.3.260.0120.00616.60
7.3.250.0100.00816.44
7.3.240.0170.00016.47
7.3.230.0030.01316.54
7.3.210.0090.00916.48
7.3.200.0130.00619.39
7.3.190.0070.01116.34
7.3.180.0060.00916.37
7.3.170.0070.01116.39
7.3.160.0040.01116.46
7.3.120.0040.01514.84
7.3.110.0040.01514.84
7.3.100.0070.00714.83
7.3.90.0110.00414.69
7.3.80.0120.00014.91
7.3.70.0000.01714.61
7.3.60.0120.00314.85
7.3.50.0040.00814.92
7.3.40.0070.01014.89
7.3.30.0000.01214.83
7.3.20.0110.00016.69
7.3.10.0030.01016.68
7.3.00.0030.01016.57
7.2.330.0090.00916.79
7.2.320.0040.01216.76
7.2.310.0070.01016.56
7.2.300.0070.01016.93
7.2.290.0110.00716.87
7.2.250.0030.01714.73
7.2.240.0030.01915.36
7.2.230.0030.01314.96
7.2.220.0000.00915.04
7.2.210.0100.00714.75
7.2.200.0040.01215.09
7.2.190.0070.01015.09
7.2.180.0030.01215.16
7.2.170.0060.00914.98
7.2.60.0030.01316.72
7.2.00.0100.00719.66
7.1.330.0060.01015.84
7.1.320.0110.00015.71
7.1.310.0070.01015.88
7.1.300.0040.00715.78
7.1.290.0100.00315.49
7.1.280.0060.00915.42
7.1.270.0030.00915.70
7.1.260.0000.01515.79
7.1.200.0130.00015.64
7.1.100.0080.00317.82
7.1.70.0040.00417.24
7.1.60.0110.01119.32
7.1.50.0090.01216.85
7.1.00.0070.07322.57
7.0.200.0000.01116.77
7.0.140.0030.07321.99
7.0.60.0130.04020.03
7.0.50.0070.05317.84
7.0.40.0070.05320.18
7.0.30.0270.04320.25
7.0.20.0200.04320.12
7.0.10.0130.07020.15
7.0.00.0130.07720.09
5.6.280.0000.07721.03
5.6.210.0130.07720.71
5.6.200.0100.06718.27
5.6.190.0000.06320.55
5.6.180.0430.06720.61
5.6.170.0200.08020.55
5.6.160.0000.04720.59
5.6.150.0000.04318.18
5.6.140.0030.07018.24
5.6.130.0100.08018.18
5.6.120.0000.05321.01
5.6.110.0030.08721.02
5.6.100.0100.04320.98
5.6.90.0000.09021.08
5.6.80.0170.06720.36
5.5.350.0030.05720.42
5.5.340.0130.06017.98
5.5.330.0100.03720.43
5.5.320.0000.05720.24
5.5.310.0270.04320.30
5.5.300.0070.08018.08
5.5.290.0000.08317.97
5.5.280.0200.07020.77
5.5.270.0030.08720.96
5.5.260.0130.07720.77
5.5.250.0130.03720.59
5.5.240.2970.04320.27
5.4.450.0470.05319.37
5.4.440.0900.04019.30
5.4.430.0270.03319.55
5.4.420.0670.00019.42
5.4.410.0630.00019.28
5.4.400.0670.00019.21
5.4.390.0630.00019.13
5.4.380.0630.00019.00
5.4.370.0600.00019.24
5.4.360.0630.00019.21
5.4.350.0630.00019.15
5.4.340.0600.00019.23
5.4.320.0060.03712.49
5.4.310.0100.03412.48
5.4.300.0090.03412.49
5.4.290.0050.03912.49
5.4.280.0050.03612.38
5.4.270.0080.03412.39
5.4.260.0070.03612.39
5.4.250.0070.03612.38
5.4.240.0090.03312.38
5.4.230.0110.03512.38
5.4.220.0060.03712.38
5.4.210.0080.03512.38
5.4.200.0070.03712.38
5.4.190.0080.03612.37
5.4.180.0060.03612.38
5.4.170.0080.03712.38
5.4.160.0040.03812.38
5.4.150.0100.03312.38
5.4.140.0050.04512.06
5.4.130.0070.03812.05
5.4.120.0060.04412.01
5.4.110.0070.04912.01
5.4.100.0050.04412.00
5.4.90.0100.03512.00
5.4.80.0050.04612.00
5.4.70.0070.03512.00
5.4.60.0040.03712.00
5.4.50.0060.03812.00
5.4.40.0050.03511.99
5.4.30.0040.03711.99
5.4.20.0070.03411.99
5.4.10.0080.03511.98
5.4.00.0080.03411.48
5.3.290.0040.04112.80
5.3.280.0070.03712.71
5.3.270.0060.04012.72
5.3.260.0070.04112.72
5.3.250.0060.04012.72
5.3.240.0070.03612.72
5.3.230.0100.03612.71
5.3.220.0070.03612.68
5.3.210.0050.04012.68
5.3.200.0050.03712.68
5.3.190.0040.04012.68
5.3.180.0050.03712.68
5.3.170.0070.03512.67
5.3.160.0060.03812.68
5.3.150.0080.03712.67
5.3.140.0050.03712.66
5.3.130.0070.03812.66
5.3.120.0080.03612.65
5.3.110.0070.03812.66
5.3.100.0070.03812.12
5.3.90.0070.03512.10
5.3.80.0080.03512.09
5.3.70.0080.03612.09
5.3.60.0040.03812.08
5.3.50.0070.03712.02
5.3.40.0080.03812.03
5.3.30.0080.03411.99
5.3.20.0090.03511.76
5.3.10.0060.03811.73
5.3.00.0080.03511.72
5.2.170.0040.0329.22
5.2.160.0050.0309.22
5.2.150.0070.0309.22
5.2.140.0070.0299.22
5.2.130.0040.0319.18
5.2.120.0030.0319.17
5.2.110.0030.0319.18
5.2.100.0070.0299.18
5.2.90.0040.0319.18
5.2.80.0050.0309.18
5.2.70.0080.0289.18
5.2.60.0040.0329.13
5.2.50.0010.0349.10
5.2.40.0080.0309.07
5.2.30.0080.0299.05
5.2.20.0030.0329.04
5.2.10.0030.0308.95
5.2.00.0030.0338.81
5.1.60.0050.0298.09
5.1.50.0020.0338.09
5.1.40.0040.0258.07
5.1.30.0030.0288.43
5.1.20.0030.0288.44
5.1.10.0060.0248.16
5.1.00.0090.0218.17
5.0.50.0030.0216.65
5.0.40.0060.0176.51
5.0.30.0050.0306.32
5.0.20.0020.0256.29
5.0.10.0010.0236.27
5.0.00.0020.0326.26
4.4.90.0050.0134.78
4.4.80.0020.0164.76
4.4.70.0010.0174.75
4.4.60.0010.0174.75
4.4.50.0020.0164.77
4.4.40.0000.0284.71
4.4.30.0040.0144.76
4.4.20.0030.0154.84
4.4.10.0040.0144.85
4.4.00.0000.0294.76
4.3.110.0010.0174.67
4.3.100.0040.0154.67
4.3.90.0050.0144.63
4.3.80.0020.0254.59
4.3.70.0050.0134.63
4.3.60.0040.0154.63
4.3.50.0060.0184.63
4.3.40.0030.0314.54
4.3.30.0040.0193.28
4.3.20.0050.0173.25
4.3.10.0030.0163.21
4.3.00.0300.01013.60

preferences:
53.47 ms | 401 KiB | 5 Q