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"; echo "\n..............................\n"; // making a hash out of property a $obj->a[123] = $obj->{123}; $obj->a["a123"] = $obj->{'a123'}; var_dump($obj); // keys auto converted to strings echo 'Via Property "a" and hashkey 123: ' . $obj->a[123],"\n"; echo "\n..............................\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)
8.3.60.0140.00718.31
8.3.50.0230.01621.94
8.3.40.0040.01118.96
8.3.30.0110.00419.22
8.3.20.0050.00320.29
8.3.10.0040.00420.56
8.3.00.0000.00819.38
8.2.180.0040.01416.75
8.2.170.0140.00722.96
8.2.160.0140.00720.44
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00422.24
8.2.110.0080.00020.41
8.2.100.0000.01118.09
8.2.90.0060.00319.22
8.2.80.0040.00417.97
8.2.70.0080.00017.38
8.2.60.0050.00517.55
8.2.50.0000.00918.07
8.2.40.0000.00820.09
8.2.30.0000.00718.14
8.2.20.0000.00817.75
8.2.10.0000.00718.18
8.2.00.0040.00417.89
8.1.280.0100.00725.92
8.1.270.0040.00423.76
8.1.260.0000.00726.35
8.1.250.0120.00628.09
8.1.240.0090.00023.88
8.1.230.0070.00419.14
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0060.00317.36
8.1.180.0040.00418.10
8.1.170.0000.00818.50
8.1.160.0000.00822.04
8.1.150.0040.00418.83
8.1.140.0000.00817.38
8.1.130.0030.00317.90
8.1.120.0000.00717.40
8.1.110.0040.00417.38
8.1.100.0040.00417.38
8.1.90.0040.00417.38
8.1.80.0020.00517.48
8.1.70.0050.00317.48
8.1.60.0000.00817.57
8.1.50.0040.00417.51
8.1.40.0030.00617.58
8.1.30.0040.00417.68
8.1.20.0030.00617.71
8.1.10.0000.00717.57
8.1.00.0040.00417.54
8.0.300.0050.00218.77
8.0.290.0040.00416.88
8.0.280.0050.00218.34
8.0.270.0000.00717.32
8.0.260.0030.00517.33
8.0.250.0070.00016.93
8.0.240.0030.00317.05
8.0.230.0040.00417.01
8.0.220.0030.00316.86
8.0.210.0030.00316.95
8.0.200.0070.00016.94
8.0.190.0040.00417.06
8.0.180.0040.00416.99
8.0.170.0090.00016.95
8.0.160.0000.00716.97
8.0.150.0000.00716.93
8.0.140.0050.00216.91
8.0.130.0000.00613.41
8.0.120.0040.00416.95
8.0.110.0080.00016.90
8.0.100.0030.00516.98
8.0.90.0000.00717.09
8.0.80.0030.01216.98
8.0.70.0050.00316.80
8.0.60.0050.00317.00
8.0.50.0030.00516.91
8.0.30.0060.01317.22
8.0.20.0160.00717.40
8.0.10.0080.00017.13
8.0.00.0100.00816.79
7.4.330.0050.00015.08
7.4.320.0070.00016.55
7.4.300.0000.00716.47
7.4.290.0000.00716.63
7.4.280.0040.00416.66
7.4.270.0030.00316.55
7.4.260.0040.00416.60
7.4.250.0070.00016.52
7.4.240.0020.00516.56
7.4.230.0050.00216.33
7.4.220.0110.00916.54
7.4.210.0000.01416.50
7.4.200.0000.00816.49
7.4.160.0140.00316.38
7.4.150.0090.00917.40
7.4.140.0070.01017.86
7.4.130.0130.00616.46
7.4.120.0040.01216.55
7.4.110.0100.00616.40
7.4.100.0110.01216.63
7.4.90.0190.00316.36
7.4.80.0110.00719.39
7.4.70.0080.00816.54
7.4.60.0070.01016.53
7.4.50.0000.00616.59
7.4.40.0080.00816.52
7.4.30.0000.01716.55
7.4.00.0050.01215.04
7.3.330.0060.00013.28
7.3.320.0000.00513.18
7.3.310.0080.00016.29
7.3.300.0030.00316.35
7.3.290.0040.01216.32
7.3.280.0120.00916.37
7.3.270.0070.01017.40
7.3.260.0060.01116.35
7.3.250.0120.00516.34
7.3.240.0110.00816.59
7.3.230.0040.01116.57
7.3.210.0070.01016.33
7.3.200.0130.01019.39
7.3.190.0060.01016.40
7.3.180.0070.01016.52
7.3.170.0030.01316.61
7.3.160.0090.01216.40
7.3.120.0070.01114.82
7.3.110.0030.00915.09
7.3.100.0000.01914.63
7.3.90.0070.01114.73
7.3.80.0030.00914.87
7.3.70.0070.00714.82
7.3.60.0040.00814.83
7.3.50.0000.01014.98
7.3.40.0090.00614.87
7.3.30.0070.00714.86
7.3.20.0110.00016.59
7.3.10.0000.01516.58
7.3.00.0090.00616.63
7.2.330.0130.00316.76
7.2.320.0030.01316.85
7.2.310.0100.00916.73
7.2.300.0060.01816.81
7.2.290.0090.01016.73
7.2.250.0130.00615.02
7.2.240.0070.01315.26
7.2.230.0030.01315.42
7.2.220.0030.00714.91
7.2.210.0070.00414.89
7.2.200.0060.00615.29
7.2.190.0070.00715.18
7.2.180.0060.00615.25
7.2.170.0030.01215.10
7.2.60.0090.00616.83
7.2.00.0110.00619.57
7.1.330.0070.00715.53
7.1.320.0000.01015.66
7.1.310.0060.00815.67
7.1.300.0040.01115.64
7.1.290.0090.00015.62
7.1.280.0000.01715.61
7.1.270.0110.00415.56
7.1.260.0060.00615.50
7.1.200.0040.01115.77
7.1.100.0070.00418.05
7.1.70.0000.00817.24
7.1.60.0110.01119.32
7.1.50.0130.01316.90
7.1.00.0030.07022.43
7.0.200.0030.00716.81
7.0.140.0030.07021.95
7.0.60.0130.07320.06
7.0.50.0000.04717.82
7.0.40.0030.04720.40
7.0.30.0270.06320.13
7.0.20.0330.07020.09
7.0.10.0030.04320.05
7.0.00.0100.08020.30
5.6.280.0070.07020.93
5.6.210.0200.08320.51
5.6.200.0130.05018.27
5.6.190.0030.06020.67
5.6.180.0500.03320.77
5.6.170.0270.05720.47
5.6.160.0170.04720.48
5.6.150.0100.08018.23
5.6.140.0070.04318.11
5.6.130.0130.07718.20
5.6.120.0070.08321.01
5.6.110.0070.08320.98
5.6.100.0070.07021.11
5.6.90.0070.08321.09
5.6.80.0070.05720.38
5.5.350.0170.04020.37
5.5.340.0030.08318.02
5.5.330.0070.04720.34
5.5.320.0430.07320.28
5.5.310.0130.05320.33
5.5.300.0170.06317.92
5.5.290.0070.07017.93
5.5.280.0070.07720.74
5.5.270.0370.07020.95
5.5.260.0100.07720.87
5.5.250.0100.07720.44
5.5.240.0200.04020.13
5.4.450.0230.05719.39
5.4.440.0270.03319.64
5.4.430.0170.06319.31
5.4.420.0300.04019.45
5.4.410.0230.06019.40
5.4.400.0230.04019.15
5.4.390.0170.06719.24
5.4.380.0270.03719.31
5.4.370.0200.06718.87
5.4.360.0230.06019.09
5.4.350.0200.04319.22
5.4.340.0300.07019.21
5.4.320.0200.06018.98
5.4.310.0230.05019.19
5.4.300.0270.03018.85
5.4.290.0230.04319.23
5.4.280.0170.04018.86
5.4.270.0200.04018.99
5.4.260.0230.03319.05
5.4.250.0430.02319.23
5.4.240.0230.03719.21
5.4.230.0330.02719.08
5.4.220.0200.04319.13
5.4.210.0230.06719.19
5.4.200.0300.05319.31
5.4.190.0330.04019.18
5.4.180.0270.07019.30
5.4.170.0370.06318.98
5.4.160.0230.06019.06
5.4.150.0330.05019.27
5.4.140.0170.05016.36
5.4.130.0170.03316.34
5.4.120.0130.03716.30
5.4.110.0070.04316.51
5.4.100.0170.03716.27
5.4.90.0170.03316.55
5.4.80.0200.03016.44
5.4.70.0270.02716.54
5.4.60.0270.04316.52
5.4.50.0170.03316.48
5.4.40.0170.07716.32
5.4.30.0130.07016.33
5.4.20.0300.03016.43
5.4.10.0170.03316.48
5.4.00.0170.04315.96
5.3.290.0200.04314.59
5.3.280.0230.03314.61
5.3.270.0230.07314.60
5.3.260.0230.06314.54
5.3.250.0170.04314.63
5.3.240.0270.03714.51
5.3.230.0100.04314.51
5.3.220.0170.03714.59
5.3.210.0230.03714.68
5.3.200.0130.03714.59
5.3.190.0170.03714.73
5.3.180.0200.03714.54
5.3.170.0230.04314.72
5.3.160.0100.04314.61
5.3.150.0170.04014.62
5.3.140.0230.03314.57
5.3.130.0100.06014.46
5.3.120.0330.03014.48
5.3.110.0170.04014.64
5.3.100.0100.04314.20
5.3.90.0130.05014.14
5.3.80.0170.03314.03
5.3.70.0130.03714.07
5.3.60.0200.04014.01
5.3.50.0200.03714.04
5.3.40.0270.03713.97
5.3.30.0170.04013.93
5.3.20.0270.03313.70
5.3.10.0130.04313.88
5.3.00.0230.03013.72
5.2.170.0130.02711.74
5.2.160.0100.03011.74
5.2.150.0070.03311.74
5.2.140.0130.02711.74
5.2.130.0100.03011.74
5.2.120.0130.02711.74
5.2.110.0200.03711.74
5.2.100.0170.02311.74
5.2.90.0130.03311.74
5.2.80.0070.03311.74
5.2.70.0230.02711.74
5.2.60.0100.03011.74
5.2.50.0070.03311.74
5.2.40.0170.02011.74
5.2.30.0100.03011.74
5.2.20.0130.02711.74
5.2.10.0170.03011.74
5.2.00.0100.03011.74
5.1.60.0030.03011.74
5.1.50.0130.02711.74
5.1.40.0130.02311.74
5.1.30.0200.05011.74
5.1.20.0200.04711.74
5.1.10.0170.03011.74
5.1.00.0170.05711.74
5.0.50.0030.02311.74
5.0.40.0130.02011.74
5.0.30.0100.03711.74
5.0.20.0070.04011.74
5.0.10.0070.05011.74
5.0.00.0070.06311.74
4.4.90.0070.01311.74
4.4.80.0030.01711.74
4.4.70.0100.01011.74
4.4.60.0030.03011.74
4.4.50.0070.01311.74
4.4.40.0070.02311.74
4.4.30.0070.02011.74
4.4.20.0030.02311.74
4.4.10.0070.01711.74
4.4.00.0100.04311.74
4.3.110.0100.02711.74
4.3.100.0130.01711.74
4.3.90.0070.03011.74
4.3.80.0130.04711.74
4.3.70.0100.02011.74
4.3.60.0030.03311.74
4.3.50.0030.02711.74
4.3.40.0100.05011.74
4.3.30.0070.03311.74
4.3.20.0030.03311.74
4.3.10.0000.02711.74
4.3.00.0030.02311.74

preferences:
45.03 ms | 401 KiB | 5 Q