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 $obj->{123}; // Parse error: ...unexpected '123' (T_LNUMBER), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' 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)
8.3.60.0120.00618.55
8.3.50.0100.01021.99
8.3.40.0040.01418.96
8.3.30.0110.00419.04
8.3.20.0040.00420.34
8.3.10.0080.00020.48
8.3.00.0040.00419.26
8.2.180.0110.00716.63
8.2.170.0040.01122.96
8.2.160.0090.00920.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.00822.23
8.2.110.0060.00322.19
8.2.100.0100.00318.22
8.2.90.0000.00819.34
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0050.00317.90
8.2.50.0030.00618.07
8.2.40.0000.00819.95
8.2.30.0030.00618.13
8.2.20.0040.00417.83
8.2.10.0000.00718.05
8.2.00.0040.00417.89
8.1.280.0110.00425.92
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0100.00023.59
8.1.230.0080.00419.10
8.1.220.0050.00317.88
8.1.210.0080.00018.77
8.1.200.0100.00017.35
8.1.190.0080.00017.25
8.1.180.0050.00318.10
8.1.170.0030.00618.71
8.1.160.0040.00422.04
8.1.150.0030.00518.99
8.1.140.0040.00417.48
8.1.130.0050.00317.83
8.1.120.0000.00817.50
8.1.110.0040.00417.54
8.1.100.0000.00717.53
8.1.90.0000.00717.38
8.1.80.0000.00817.40
8.1.70.0040.00417.50
8.1.60.0040.00417.48
8.1.50.0050.00317.53
8.1.40.0000.00817.54
8.1.30.0000.00817.50
8.1.20.0000.00817.50
8.1.10.0030.00517.49
8.1.00.0000.00717.42
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0030.00318.46
8.0.270.0000.00717.20
8.0.260.0060.00017.32
8.0.250.0030.00316.93
8.0.240.0070.00017.09
8.0.230.0070.00017.09
8.0.220.0040.00416.88
8.0.210.0070.00016.97
8.0.200.0040.00417.01
8.0.190.0000.00717.00
8.0.180.0000.00716.90
8.0.170.0070.00317.05
8.0.160.0030.00517.03
8.0.150.0070.00016.91
8.0.140.0040.00416.97
8.0.130.0030.00313.37
8.0.120.0080.00016.91
8.0.110.0000.00816.98
8.0.100.0050.00216.84
8.0.90.0000.00716.83
8.0.80.0070.01416.93
8.0.70.0030.00516.86
8.0.60.0070.00016.87
8.0.50.0040.00416.98
8.0.30.0100.01017.22
8.0.20.0080.01217.40
8.0.10.0040.00417.03
8.0.00.0120.00517.05
7.4.330.0020.00215.12
7.4.320.0000.00616.52
7.4.300.0030.00316.42
7.4.290.0000.00716.54
7.4.280.0000.00716.63
7.4.270.0000.00716.53
7.4.260.0000.00716.49
7.4.250.0040.00416.52
7.4.240.0040.00416.57
7.4.230.0030.00316.58
7.4.220.0110.00716.60
7.4.210.0110.00416.55
7.4.200.0040.00416.54
7.4.160.0130.00316.41
7.4.150.0200.00017.40
7.4.140.0100.00817.86
7.4.130.0110.00616.61
7.4.120.0120.00516.44
7.4.110.0100.00616.41
7.4.100.0090.00916.51
7.4.90.0100.00716.55
7.4.80.0160.00719.39
7.4.70.0110.00616.61
7.4.60.0060.00916.46
7.4.50.0000.00816.60
7.4.40.0060.00916.44
7.4.30.0030.01416.30
7.4.00.0080.00614.90
7.3.330.0000.00613.25
7.3.320.0020.00213.06
7.3.310.0050.00216.21
7.3.300.0030.00316.25
7.3.290.0070.00716.29
7.3.280.0080.01016.38
7.3.270.0150.00617.40
7.3.260.0070.01016.27
7.3.250.0070.01316.62
7.3.240.0130.00516.34
7.3.230.0080.00816.54
7.3.210.0130.00316.44
7.3.200.0030.01619.39
7.3.190.0060.01016.61
7.3.180.0030.01616.45
7.3.170.0090.01316.33
7.3.160.0080.00816.55
7.2.330.0160.00316.84
7.2.320.0070.01416.88
7.2.310.0130.00316.82
7.2.300.0100.00716.52
7.2.290.0030.01316.79
7.2.60.0070.01016.86
7.2.00.0130.00719.32
7.1.200.0000.00815.55
7.1.100.0000.00818.18
7.1.70.0040.00417.28
7.1.60.0100.01319.32
7.1.50.0140.01016.82
7.1.00.0000.07322.40
7.0.200.0040.00416.70
7.0.140.0130.06322.18
7.0.70.4770.04319.98
7.0.60.0030.04019.93
7.0.50.0070.08317.88
7.0.40.0030.06020.11
7.0.30.0230.05720.25
7.0.20.0330.07320.21
7.0.10.0200.04720.15
7.0.00.0070.05020.23
5.6.280.0000.07721.11
5.6.210.0030.06320.75
5.6.200.0070.07718.12
5.6.190.0070.04320.32
5.6.180.0170.08020.75
5.6.170.0370.08020.39
5.6.160.0100.09020.55
5.6.150.0130.08018.16
5.6.140.0130.07718.24
5.6.130.0100.08318.18
5.6.120.0130.05721.14
5.6.110.0000.04320.97
5.6.100.0000.09320.98
5.6.90.0100.08320.97
5.6.80.0070.08020.54
5.6.70.0170.07320.36
5.5.350.0070.08320.31
5.5.340.0100.07017.96
5.5.330.0030.08320.42
5.5.320.0100.06020.47
5.5.310.0300.08020.34
5.5.300.0130.06317.97
5.5.290.0070.08018.02
5.5.280.0100.08020.74
5.5.270.0030.09020.65
5.5.260.0100.07020.88
5.5.250.0030.04320.59
5.5.240.0030.04720.27
5.4.450.0330.03319.27
5.4.440.0330.03319.49
5.4.430.0600.03319.63
5.4.420.0670.00019.37
5.4.410.0630.00019.57
5.4.400.0630.00019.25
5.4.390.0630.00018.98
5.4.380.0670.00019.24
5.4.370.0600.00019.13
5.4.360.0600.00019.15
5.4.350.0670.00019.12
5.4.340.0630.00019.04
5.4.320.0050.03812.50
5.4.310.0040.04912.49
5.4.300.0080.05012.49
5.4.290.0080.03912.48
5.4.280.0070.03512.39
5.4.270.0050.04312.39
5.4.260.0080.03512.39
5.4.250.0060.03912.38
5.4.240.0090.03312.38
5.4.230.0070.03612.38
5.4.220.0040.03812.38
5.4.210.0050.03612.38
5.4.200.0060.03812.38
5.4.190.0090.03312.38
5.4.180.0060.03712.38
5.4.170.0080.03512.39
5.4.160.0080.03412.38
5.4.150.0050.03712.38
5.4.140.0040.03912.06
5.4.130.0080.03412.05
5.4.120.0080.03312.00
5.4.110.0060.03612.00
5.4.100.0050.03712.00
5.4.90.0070.03612.01
5.4.80.0040.04112.00
5.4.70.0060.03412.00
5.4.60.0110.03712.00
5.4.50.0090.03512.00
5.4.40.0030.04011.99
5.4.30.0050.03611.98
5.4.20.0060.03511.99
5.4.10.0050.04011.99
5.4.00.0080.03311.48
5.3.290.0060.03912.80
5.3.280.0070.04312.71
5.3.270.0050.04112.72
5.3.260.0050.04212.72
5.3.250.0080.03612.72
5.3.240.0090.03812.72
5.3.230.0070.03812.70
5.3.220.0040.04012.68
5.3.210.0070.04812.68
5.3.200.0100.03312.68
5.3.190.0060.03712.68
5.3.180.0040.04112.68
5.3.170.0070.03812.67
5.3.160.0060.03712.67
5.3.150.0070.04312.68
5.3.140.0060.03912.66
5.3.130.0060.03912.66
5.3.120.0050.04012.66
5.3.110.0060.04612.65
5.3.100.0060.03612.12
5.3.90.0080.04212.10
5.3.80.0100.03712.09
5.3.70.0120.04812.09
5.3.60.0070.03612.07
5.3.50.0090.03312.02
5.3.40.0070.03412.02
5.3.30.0080.03311.99
5.3.20.0100.03711.76
5.3.10.0070.03411.73
5.3.00.0060.03711.72
5.2.170.0040.0329.22
5.2.160.0050.0299.22
5.2.150.0050.0329.22
5.2.140.0040.0359.21
5.2.130.0050.0299.18
5.2.120.0020.0319.18
5.2.110.0070.0279.18
5.2.100.0020.0319.18
5.2.90.0050.0329.18
5.2.80.0050.0319.18
5.2.70.0040.0319.18
5.2.60.0050.0299.13
5.2.50.0060.0309.10
5.2.40.0070.0359.07
5.2.30.0060.0369.05
5.2.20.0070.0319.04
5.2.10.0080.0288.95
5.2.00.0070.0288.81
5.1.60.0060.0288.09
5.1.50.0050.0248.09
5.1.40.0030.0258.07
5.1.30.0020.0288.42
5.1.20.0040.0308.44
5.1.10.0050.0258.17
5.1.00.0070.0298.17
5.0.50.0030.0256.66
5.0.40.0040.0196.51
5.0.30.0040.0316.32
5.0.20.0020.0226.30
5.0.10.0030.0206.27
5.0.00.0010.0336.26
4.4.90.0010.0174.78
4.4.80.0050.0134.76
4.4.70.0040.0144.76
4.4.60.0030.0154.75
4.4.50.0020.0174.77
4.4.40.0050.0234.71
4.4.30.0030.0164.76
4.4.20.0060.0174.85
4.4.10.0020.0164.85
4.4.00.0040.0254.76
4.3.110.0010.0194.67
4.3.100.0020.0154.67
4.3.90.0010.0164.63
4.3.80.0040.0244.58
4.3.70.0030.0144.63
4.3.60.0020.0154.62
4.3.50.0040.0154.63
4.3.40.0010.0274.54
4.3.30.0040.0183.28
4.3.20.0030.0173.25
4.3.10.0070.0213.21
4.3.00.0070.01313.60

preferences:
65.24 ms | 401 KiB | 5 Q