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 $obj->{123}; // Parse error: ...unexpected '123' (T_LNUMBER), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' $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)
8.3.60.0090.00618.54
8.3.50.0130.00522.11
8.3.40.0110.00718.93
8.3.30.0170.00319.19
8.3.20.0000.00720.21
8.3.10.0080.00020.66
8.3.00.0030.00519.25
8.2.180.0130.00716.63
8.2.170.0040.01122.96
8.2.160.0100.00720.57
8.2.150.0030.00524.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0080.00022.23
8.2.110.0100.01020.42
8.2.100.0060.00618.09
8.2.90.0040.00419.27
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0000.00818.04
8.2.50.0000.00818.07
8.2.40.0030.00619.95
8.2.30.0070.00018.22
8.2.20.0070.00017.89
8.2.10.0040.00418.16
8.2.00.0000.00817.77
8.1.280.0090.00625.92
8.1.270.0050.00323.79
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0100.00023.70
8.1.230.0000.01119.09
8.1.220.0040.00417.78
8.1.210.0050.00318.77
8.1.200.0030.00617.36
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0000.00818.41
8.1.160.0020.00521.95
8.1.150.0070.00018.87
8.1.140.0000.00717.46
8.1.130.0000.00717.84
8.1.120.0000.00717.40
8.1.110.0000.00717.49
8.1.100.0050.00317.53
8.1.90.0000.00717.47
8.1.80.0000.00717.53
8.1.70.0080.00017.46
8.1.60.0060.00317.62
8.1.50.0000.00817.45
8.1.40.0030.00517.45
8.1.30.0090.00017.50
8.1.20.0000.00817.65
8.1.10.0000.00817.61
8.1.00.0030.00517.54
8.0.300.0040.00418.77
8.0.290.0090.00016.88
8.0.280.0000.00718.36
8.0.270.0000.00717.19
8.0.260.0040.00417.27
8.0.250.0040.00417.03
8.0.240.0030.00316.98
8.0.230.0000.00816.98
8.0.220.0000.00716.93
8.0.210.0030.00316.95
8.0.200.0070.00016.93
8.0.190.0070.00017.10
8.0.180.0000.00717.04
8.0.170.0030.00616.90
8.0.160.0050.00317.04
8.0.150.0000.00716.98
8.0.140.0000.00716.94
8.0.130.0030.00313.36
8.0.120.0040.00416.94
8.0.110.0000.00817.04
8.0.100.0060.00316.90
8.0.90.0000.00717.02
8.0.80.0120.00316.97
8.0.70.0080.00016.88
8.0.60.0070.00016.99
8.0.50.0040.00416.84
8.0.30.0110.01017.20
8.0.20.0100.00917.40
8.0.10.0000.00816.99
8.0.00.0100.00917.13
7.4.330.0050.00015.00
7.4.320.0030.00316.55
7.4.300.0000.00616.60
7.4.290.0000.00716.42
7.4.280.0040.00416.51
7.4.270.0070.00016.64
7.4.260.0000.00716.63
7.4.250.0000.00716.41
7.4.240.0040.00416.46
7.4.230.0000.00716.56
7.4.220.0130.00716.52
7.4.210.0110.00516.66
7.4.200.0050.00216.59
7.4.160.0120.01216.66
7.4.150.0060.01317.40
7.4.140.0170.00117.86
7.4.130.0100.00916.52
7.4.120.0070.01016.51
7.4.110.0130.00316.56
7.4.100.0080.01216.54
7.4.90.0070.01016.55
7.4.80.0030.01319.39
7.4.70.0070.01016.51
7.4.60.0060.00916.59
7.4.50.0060.00316.54
7.4.40.0060.01016.52
7.4.30.0140.00316.41
7.4.00.0050.01315.02
7.3.330.0060.00013.09
7.3.320.0030.00313.19
7.3.310.0080.00016.19
7.3.300.0030.00316.18
7.3.290.0070.00716.33
7.3.280.0100.00716.37
7.3.270.0130.00517.40
7.3.260.0030.01416.28
7.3.250.0100.00716.34
7.3.240.0040.01416.33
7.3.230.0140.00416.50
7.3.210.0090.00916.39
7.3.200.0070.01519.39
7.3.190.0120.01216.29
7.3.180.0090.01216.46
7.3.170.0030.01316.36
7.3.160.0140.00316.62
7.3.120.0040.01414.61
7.3.110.0060.00914.59
7.3.100.0030.01314.70
7.3.90.0040.01114.61
7.3.80.0060.00314.95
7.3.70.0070.01014.48
7.3.60.0030.00614.82
7.3.50.0060.00814.89
7.3.40.0040.00414.77
7.3.30.0040.01114.79
7.3.20.0030.01116.63
7.3.10.0000.01416.30
7.3.00.0080.00416.70
7.2.330.0060.01216.70
7.2.320.0090.00916.66
7.2.310.0130.01016.48
7.2.300.0150.00916.76
7.2.290.0120.00616.68
7.2.250.0100.01015.20
7.2.240.0090.00614.99
7.2.230.0060.00915.05
7.2.220.0060.00315.29
7.2.210.0030.01014.98
7.2.200.0060.00915.20
7.2.190.0060.00915.06
7.2.180.0060.01014.91
7.2.170.0080.00415.23
7.2.60.0130.00016.98
7.2.00.0090.00619.25
7.1.330.0110.00315.72
7.1.320.0030.01315.92
7.1.310.0120.00315.74
7.1.300.0040.00415.82
7.1.290.0040.01116.00
7.1.280.0040.00715.53
7.1.270.0040.01115.74
7.1.260.0040.00915.80
7.1.200.0070.00715.76
7.1.100.0120.00317.64
7.1.70.0040.00417.15
7.1.60.0030.02019.32
7.1.50.0070.00716.86
7.1.00.0030.07722.50
7.0.200.0000.00816.66
7.0.140.0000.07722.15
7.0.60.0270.06719.98
7.0.50.0170.05318.00
7.0.40.0000.05020.13
7.0.30.0230.03720.09
7.0.20.0170.06720.21
7.0.10.0130.05720.33
7.0.00.0070.08320.32
5.6.280.0030.07320.92
5.6.210.0030.08020.52
5.6.200.0100.08018.19
5.6.190.0070.04720.39
5.6.180.0170.08720.64
5.6.170.0370.04020.50
5.6.160.0070.04020.56
5.6.150.0100.06718.18
5.6.140.0130.08018.18
5.6.130.0100.08018.16
5.6.120.0030.07721.02
5.6.110.0030.08020.99
5.6.100.0070.08321.02
5.6.90.0100.04020.95
5.6.80.0070.08020.51
5.5.350.0270.06020.42
5.5.340.0130.07318.07
5.5.330.0030.06320.29
5.5.320.0530.05720.24
5.5.310.0170.04720.50
5.5.300.0070.08018.02
5.5.290.0030.08718.07
5.5.280.0000.05020.97
5.5.270.0130.06020.66
5.5.260.0100.07720.65
5.5.250.0130.07020.47
5.5.240.0070.07720.16
5.4.450.3600.03719.43
5.4.440.0130.07019.55
5.4.430.1830.04319.56
5.4.420.4070.03319.25
5.4.410.3970.03719.12
5.4.400.3930.04019.14
5.4.390.3530.04019.24
5.4.380.3370.03719.24
5.4.370.0000.04319.10
5.4.360.1200.04719.06
5.4.350.3500.02719.24
5.4.340.3200.04019.18
5.4.320.3400.03319.05
5.4.310.3830.04019.04
5.4.300.4070.03719.05
5.4.290.3970.03719.14
5.4.280.4000.03319.22
5.4.270.4000.03719.18
5.4.260.3970.03719.14
5.4.250.3770.04019.14
5.4.240.3870.03318.95
5.4.230.3630.03319.23
5.4.220.3930.03719.18
5.4.210.3430.03718.94
5.4.200.3670.03719.14
5.4.190.4130.04319.11
5.4.180.3400.05019.12
5.4.170.4030.03318.95
5.4.160.3800.04019.20
5.4.150.3830.04319.09
5.4.140.3900.03716.34
5.4.130.3700.03716.30
5.4.120.3370.03316.34
5.4.110.3870.03016.44
5.4.100.3630.04016.56
5.4.90.4470.03716.42
5.4.80.4070.03016.50
5.4.70.3600.03016.51
5.4.60.3600.03016.53
5.4.50.4030.03716.48
5.4.40.4600.03316.42
5.4.30.4330.04316.31
5.4.20.4170.04316.32
5.4.10.3670.04316.45
5.4.00.4000.03015.86
5.3.290.4100.05014.71
5.3.280.3830.03714.67
5.3.270.3770.03714.64
5.3.260.4800.04314.62
5.3.250.3870.03314.64
5.3.240.4000.03714.64
5.3.230.3870.04014.49
5.3.220.3470.04014.58
5.3.210.3500.04314.62
5.3.200.3570.03314.47
5.3.190.4130.04014.65
5.3.180.4200.03314.57
5.3.170.3600.03314.72
5.3.160.4670.04714.61
5.3.150.3700.04314.56
5.3.140.4370.03714.61
5.3.130.3830.04314.72
5.3.120.4100.04714.58
5.3.110.3830.04014.44
5.3.100.3700.03714.11
5.3.90.3870.03314.08
5.3.80.3370.03313.99
5.3.70.3870.03014.02
5.3.60.3800.03714.09
5.3.50.3600.03014.01
5.3.40.3530.03714.00
5.3.30.3630.03713.92
5.3.20.4170.03713.71
5.3.10.4400.03713.70
5.3.00.4670.03313.73
5.2.170.3370.03011.16
5.2.160.3130.02711.18
5.2.150.3230.03011.11
5.2.140.3270.03311.23
5.2.130.3870.03311.04
5.2.120.2870.03011.17
5.2.110.3600.02011.00
5.2.100.3800.03011.12
5.2.90.3900.03011.05
5.2.80.3870.02711.16
5.2.70.3500.03311.18
5.2.60.3030.02310.97
5.2.50.3370.03310.97
5.2.40.2600.02711.05
5.2.30.2770.03010.99
5.2.20.2430.02710.92
5.2.10.2930.03311.02
5.2.00.2970.02710.88
5.1.60.2200.0209.98
5.1.50.2400.0239.95
5.1.40.2800.0239.89
5.1.30.2570.02310.34
5.1.20.2670.03010.33
5.1.10.2630.03010.05
5.1.00.2430.02310.12
5.0.50.1300.0278.71
5.0.40.1800.0178.33
5.0.30.1430.0338.20
5.0.20.0970.0178.16
5.0.10.1230.0178.23
5.0.00.1470.0278.32
4.4.90.1770.0135.81
4.4.80.1600.0205.82
4.4.70.1530.0175.80
4.4.60.1530.0205.75
4.4.50.1370.0175.79
4.4.40.1330.0275.89
4.4.30.1300.0135.80
4.4.20.1330.0135.87
4.4.10.1470.0175.86
4.4.00.1770.0275.80
4.3.110.1800.0175.73
4.3.100.1470.0135.70
4.3.90.1270.0105.69
4.3.80.1400.0305.78
4.3.70.1200.0135.71
4.3.60.1200.0135.74
4.3.50.1170.0175.70
4.3.40.1200.0235.70
4.3.30.0000.0135.69
4.3.20.0000.0175.69
4.3.10.0000.0175.69
4.3.00.0000.0135.69

preferences:
58.05 ms | 401 KiB | 5 Q