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)
8.3.60.0040.01118.55
8.3.50.0110.00418.09
8.3.40.0040.01118.79
8.3.30.0040.01119.22
8.3.20.0080.00020.30
8.3.10.0050.00320.66
8.3.00.0080.00019.50
8.2.180.0070.00718.54
8.2.170.0000.01518.96
8.2.160.0070.00722.96
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0080.00026.16
8.2.120.0040.00422.29
8.2.110.0080.00020.58
8.2.100.0120.00017.91
8.2.90.0050.00319.35
8.2.80.0080.00017.97
8.2.70.0040.00417.75
8.2.60.0140.00717.79
8.2.50.0030.00618.07
8.2.40.0080.00019.88
8.2.30.0020.00518.02
8.2.20.0000.00817.82
8.2.10.0000.00818.03
8.2.00.0060.00317.70
8.1.270.0040.00423.92
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0030.00619.57
8.1.230.0040.00717.51
8.1.220.0090.00017.78
8.1.210.0040.00418.77
8.1.200.0070.00317.35
8.1.190.0040.00417.35
8.1.180.0080.00018.10
8.1.170.0080.00018.65
8.1.160.0040.00422.11
8.1.150.0040.00418.91
8.1.140.0000.00717.40
8.1.130.0070.00017.96
8.1.120.0000.00717.55
8.1.110.0040.00417.36
8.1.100.0040.00417.45
8.1.90.0000.00717.32
8.1.80.0080.00017.50
8.1.70.0040.00417.42
8.1.60.0000.00817.67
8.1.50.0000.00817.56
8.1.40.0030.00517.51
8.1.30.0030.00517.51
8.1.20.0070.00317.57
8.1.10.0050.00217.56
8.1.00.0060.00317.51
8.0.300.0030.00618.77
8.0.290.0000.00716.75
8.0.280.0020.00518.37
8.0.270.0040.00317.28
8.0.260.0040.00417.28
8.0.250.0030.00317.02
8.0.240.0030.00316.97
8.0.230.0040.00417.03
8.0.220.0080.00017.00
8.0.210.0000.00816.97
8.0.200.0040.00416.94
8.0.190.0070.00016.90
8.0.180.0070.00016.89
8.0.170.0040.00416.97
8.0.160.0030.00516.91
8.0.150.0070.00016.93
8.0.140.0050.00216.93
8.0.130.0030.00313.36
8.0.120.0040.00416.93
8.0.110.0050.00316.95
8.0.100.0020.00517.02
8.0.90.0000.00716.87
8.0.80.0120.00917.02
8.0.70.0040.00416.85
8.0.60.0040.00416.93
8.0.50.0040.00417.00
8.0.30.0110.00817.16
8.0.20.0150.00517.40
8.0.10.0040.00417.06
8.0.00.0110.00816.88
7.4.330.0050.00015.00
7.4.320.0000.00716.52
7.4.300.0020.00516.55
7.4.290.0000.00716.63
7.4.280.0000.00716.63
7.4.270.0000.00716.51
7.4.260.0000.00716.56
7.4.250.0060.00316.28
7.4.240.0020.00516.48
7.4.230.0040.00416.57
7.4.220.0200.00616.63
7.4.210.0100.01616.50
7.4.200.0000.00716.57
7.4.160.0290.00416.62
7.4.150.0030.01617.40
7.4.140.0050.01417.86
7.4.130.0080.00916.49
7.4.120.0060.01216.65
7.4.110.0100.01316.42
7.4.100.0130.01416.54
7.4.90.0100.00716.39
7.4.80.0070.01119.39
7.4.70.0090.01316.55
7.4.60.0130.00316.48
7.4.50.0030.00316.46
7.4.40.0130.00316.61
7.4.30.0120.00616.47
7.4.10.0070.01114.64
7.4.00.0060.01114.88
7.3.330.0000.00613.18
7.3.320.0050.00013.32
7.3.310.0000.00716.48
7.3.300.0070.00016.21
7.3.290.0100.00516.43
7.3.280.0080.00716.38
7.3.270.0140.00317.40
7.3.260.0140.00416.57
7.3.250.0090.00916.53
7.3.240.0220.00016.27
7.3.230.0130.00316.48
7.3.210.0130.00316.37
7.3.200.0070.01019.39
7.3.190.0070.01016.30
7.3.180.0110.00816.52
7.3.170.0070.01016.34
7.3.160.0080.00816.51
7.3.130.0110.00814.59
7.3.120.0070.01014.55
7.3.110.0070.01015.04
7.3.100.0030.01014.61
7.3.90.0110.00314.68
7.3.80.0000.01214.75
7.3.70.0040.00714.64
7.3.60.0060.00314.77
7.3.50.0110.00314.29
7.3.40.0060.00614.92
7.3.30.0150.00314.51
7.3.20.0130.00616.11
7.3.10.0080.00415.98
7.3.00.0110.00716.44
7.2.330.0060.01216.46
7.2.320.0140.00316.74
7.2.310.0060.01316.72
7.2.300.0100.00716.36
7.2.290.0070.01016.55
7.2.260.0070.01015.00
7.2.250.0070.01015.33
7.2.240.0030.00914.81
7.2.230.0100.00014.63
7.2.220.0040.01515.09
7.2.210.0000.01615.19
7.2.200.0080.00314.71
7.2.190.0080.00815.16
7.2.180.0000.01614.77
7.2.170.0100.00315.15
7.2.160.0030.01314.88
7.2.150.0100.00317.12
7.2.140.0060.00916.70
7.2.130.0070.00717.02
7.2.120.0000.01616.73
7.2.110.0030.01317.00
7.2.100.0060.00616.85
7.2.90.0060.01016.95
7.2.80.0030.01316.61
7.2.70.0040.00817.03
7.2.60.0050.00716.89
7.2.50.0070.00616.61
7.2.40.0030.00616.84
7.2.30.0070.00316.96
7.2.20.0130.00016.80
7.2.10.0070.00717.12
7.2.00.0080.01118.37
7.1.330.0100.00315.72
7.1.320.0120.00315.74
7.1.310.0030.01315.45
7.1.300.0030.00615.79
7.1.290.0030.01015.88
7.1.280.0040.01115.52
7.1.270.0080.00815.74
7.1.260.0070.01015.77
7.1.250.0120.00315.52
7.1.240.0000.01415.88
7.1.230.0060.00616.02
7.1.220.0060.00615.34
7.1.210.0060.00915.63
7.1.200.0020.01115.92
7.1.190.0110.00315.73
7.1.180.0000.01115.81
7.1.170.0070.01015.31
7.1.160.0080.00015.31
7.1.150.0040.01115.50
7.1.140.0040.00415.96
7.1.130.0060.00915.58
7.1.120.0060.00315.57
7.1.110.0060.00615.90
7.1.100.0020.01316.98
7.1.90.0040.00815.71
7.1.80.0060.00915.52
7.1.70.0050.00816.34
7.1.60.0090.01017.52
7.1.50.0110.00816.36
7.1.40.0060.00315.62
7.1.30.0070.00715.36
7.1.20.0000.00815.71
7.1.10.0040.01115.50
7.1.00.0050.04119.01
7.0.330.0040.01215.25
7.0.320.0060.00915.32
7.0.310.0070.01115.36
7.0.300.0030.01015.24
7.0.290.0000.00915.04
7.0.280.0070.00715.39
7.0.270.0060.00915.11
7.0.260.0030.01215.14
7.0.250.0070.00615.12
7.0.240.0060.00615.35
7.0.230.0040.00415.52
7.0.220.0040.00715.11
7.0.210.0030.00715.44
7.0.200.0090.00216.01
7.0.190.0030.00515.36
7.0.180.0070.00315.44
7.0.170.0040.01115.34
7.0.160.0060.00615.20
7.0.150.0070.00715.19
7.0.140.0040.03918.73
7.0.130.0090.00015.46
7.0.120.0060.00615.27
7.0.110.0030.01015.04
7.0.100.0030.01215.38
7.0.90.0090.00014.95
7.0.80.0030.00715.55
7.0.70.0040.01215.37
7.0.60.0070.04317.42
7.0.50.0020.04916.72
7.0.40.0030.03616.87
7.0.30.0120.03616.90
7.0.20.0170.04716.66
7.0.10.0070.02316.68
7.0.00.0050.03416.65
5.6.400.0140.00014.48
5.6.390.0090.00914.83
5.6.380.0110.00414.23
5.6.370.0000.01114.75
5.6.360.0150.00614.70
5.6.350.0080.00414.49
5.6.340.0070.00314.39
5.6.330.0030.00714.76
5.6.320.0000.00814.54
5.6.310.0100.00614.46
5.6.300.0030.01014.32
5.6.290.0000.01414.75
5.6.280.0060.03917.91
5.6.270.0100.00614.42
5.6.260.0030.01214.32
5.6.250.0090.00614.64
5.6.240.0070.00414.68
5.6.230.0060.00914.37
5.6.220.0040.00814.54
5.6.210.0040.04617.47
5.6.200.0070.04816.37
5.6.190.0080.02817.57
5.6.180.0180.04517.50
5.6.170.0160.02817.52
5.6.160.0140.04017.39
5.6.150.0100.02716.29
5.6.140.0100.03616.35
5.6.130.0050.04716.32
5.6.120.0120.02717.58
5.6.110.0020.04817.75
5.6.100.0100.04817.56
5.6.90.0120.04217.75
5.6.80.0090.04017.46
5.6.70.0100.00314.39
5.6.60.0040.01214.46
5.6.50.0030.00614.27
5.6.40.0060.00914.17
5.6.30.0040.01514.41
5.6.20.0040.00714.18
5.6.10.0090.00614.67
5.6.00.0070.00414.16
5.5.380.0000.01314.29
5.5.370.0060.00614.66
5.5.360.0000.01714.22
5.5.350.0130.03217.48
5.5.340.0120.03716.27
5.5.330.0050.04317.46
5.5.320.0230.03617.34
5.5.310.0190.03517.43
5.5.300.0090.02516.14
5.5.290.0090.02016.14
5.5.280.0110.04317.58
5.5.270.0070.04917.65
5.5.260.0080.03517.60
5.5.250.0050.05017.48
5.5.240.0150.03817.26
5.5.230.0060.01014.21
5.5.220.0080.00814.41
5.5.210.0090.00614.57
5.5.200.0140.00414.46
5.5.190.0060.01314.63
5.5.180.0030.00614.30
5.5.170.0090.00614.33
5.5.160.0110.00314.36
5.5.150.0100.00714.61
5.5.140.0030.01014.45
5.5.130.0070.00714.34
5.5.120.0110.00314.50
5.5.110.0110.00414.14
5.5.100.0080.00814.59
5.5.90.0100.00714.18
5.5.80.0030.01214.38
5.5.70.0080.00313.97
5.5.60.0040.01114.07
5.5.50.0130.00014.46
5.5.40.0000.01714.58
5.5.30.0030.01614.24
5.5.20.0070.00414.32
5.5.10.0060.00314.25
5.5.00.0040.01114.35
5.4.450.0150.04115.40
5.4.440.0180.04015.38
5.4.430.0210.03015.28
5.4.420.0210.03215.25
5.4.410.0190.03815.18
5.4.400.0170.02215.01
5.4.390.0130.02315.20
5.4.380.0200.03515.12
5.4.370.0220.03515.05
5.4.360.0130.03114.94
5.4.350.0200.03515.18
5.4.340.0180.03015.17
5.4.330.0000.01211.00
5.4.320.0190.03615.21
5.4.310.0220.03315.29
5.4.300.0150.04015.19
5.4.290.0180.02315.21
5.4.280.0130.04215.15
5.4.270.0220.03115.26
5.4.260.0200.03315.04
5.4.250.0160.04315.11
5.4.240.0280.03015.13
5.4.230.0150.04015.25
5.4.220.0150.02815.29
5.4.210.0190.02115.04
5.4.200.0170.03715.23
5.4.190.0180.03815.14
5.4.180.0130.04014.90
5.4.170.0230.03014.93
5.4.160.0150.02315.08
5.4.150.0170.03215.13
5.4.140.0200.03513.86
5.4.130.0170.03713.74
5.4.120.0190.03713.97
5.4.110.0210.03213.68
5.4.100.0150.03613.75
5.4.90.0180.03713.73
5.4.80.0130.03813.84
5.4.70.0200.02213.82
5.4.60.0150.03713.72
5.4.50.0130.02013.75
5.4.40.0200.03613.76
5.4.30.0230.03313.89
5.4.20.0220.03513.73
5.4.10.0220.03613.64
5.4.00.0220.02713.56
5.3.290.0330.06714.68
5.3.280.0270.07714.72
5.3.270.0270.08014.58
5.3.260.0230.04014.61
5.3.250.0270.04714.68
5.3.240.0300.07014.52
5.3.230.0330.04014.68
5.3.220.0230.04314.47
5.3.210.0300.07014.54
5.3.200.0270.05014.47
5.3.190.0300.06314.79
5.3.180.0200.06314.49
5.3.170.0300.07314.54
5.3.160.0270.04714.66
5.3.150.0230.04714.61
5.3.140.0330.06714.47
5.3.130.0400.05014.54
5.3.120.0330.06014.52
5.3.110.0230.04314.45
5.3.100.0300.04014.01
5.3.90.0330.06313.95
5.3.80.0300.06014.11
5.3.70.0270.07013.93
5.3.60.0430.03014.23
5.3.50.0330.06713.96
5.3.40.0300.05313.86
5.3.30.0300.06713.94
5.3.20.0370.04713.92
5.3.10.0330.06013.73
5.3.00.0300.05313.73
5.2.170.0230.06013.73
5.2.160.0270.05713.73
5.2.150.0270.05313.73
5.2.140.0200.04313.73
5.2.130.0330.03013.73
5.2.120.0270.05313.73
5.2.110.0230.04313.73
5.2.100.0230.03313.73
5.2.90.0230.05313.73
5.2.80.0270.05713.73
5.2.70.0270.04013.73
5.2.60.0230.05313.73
5.2.50.0230.06013.73
5.2.40.0230.04313.73
5.2.30.0300.02713.73
5.2.20.0130.03713.73
5.2.10.0200.03313.73
5.2.00.0130.03312.12
5.1.60.0200.03312.12
5.1.50.0130.05712.12
5.1.40.0130.03712.12
5.1.30.0170.04312.12
5.1.20.0230.05012.12
5.1.10.0200.03712.12
5.1.00.0200.05312.12
5.0.50.0100.02312.12
5.0.40.0130.04012.12
5.0.30.0200.05012.12
5.0.20.0170.02712.12
5.0.10.0100.02012.12
5.0.00.0130.04012.12
4.4.90.0100.02313.73
4.4.80.0070.02013.73
4.4.70.0200.02013.73
4.4.60.0070.04013.73
4.4.50.0100.03313.73
4.4.40.0070.04012.12
4.4.30.0100.03012.12
4.4.20.0070.03712.12
4.4.10.0070.02312.12
4.4.00.0070.03312.12
4.3.110.0100.02312.12
4.3.100.0100.03312.12
4.3.90.0070.01712.12
4.3.80.0100.05312.12
4.3.70.0070.02712.12
4.3.60.0100.02012.12
4.3.50.0170.02312.12
4.3.40.0130.03012.12
4.3.30.0030.03712.12
4.3.20.0130.03312.12
4.3.10.0100.03012.12
4.3.00.0070.02312.12

preferences:
52.08 ms | 400 KiB | 5 Q