3v4l.org

run code in 300+ PHP versions simultaneously
<?php phpversion() >= "7.0.0" or die(); $foo = 'foo'; $bar = new stdClass; $bar->$foo = array(10, 20, 30); // $bar->foo => array(10, 20, 30) $bar->{$foo[0]} = 42; // dynamic property $f = 42 – derived from zero offset of ‘foo’ $bar->$foo[0] = 42; // zeroth element of array that $foo identifies = 42 var_dump($bar);

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)
7.4.10.0130.00014.99
7.4.00.0090.00915.18
7.3.130.0090.00614.91
7.3.120.0060.01015.05
7.3.110.0090.01214.82
7.3.100.0030.01014.91
7.3.90.0030.00914.75
7.3.80.0070.00715.02
7.3.70.0090.00014.75
7.3.60.0040.00914.71
7.3.50.0060.00314.79
7.3.40.0000.01114.97
7.3.30.0110.00414.71
7.3.20.0090.00616.76
7.3.10.0070.00716.71
7.3.00.0030.01016.72
7.2.260.0090.01215.00
7.2.250.0070.01015.06
7.2.240.0070.00714.97
7.2.230.0090.00615.03
7.2.220.0060.01115.26
7.2.210.0040.01115.14
7.2.200.0090.00615.22
7.2.190.0040.01115.27
7.2.180.0000.00814.87
7.2.170.0070.01014.89
7.2.160.0060.00914.89
7.2.150.0130.00316.83
7.2.140.0060.01016.73
7.2.130.0070.00717.02
7.2.120.0100.00717.18
7.2.110.0000.01017.16
7.2.100.0090.00616.95
7.2.90.0070.00417.11
7.2.80.0030.01016.99
7.2.70.0070.00716.73
7.2.60.0080.00616.77
7.2.50.0060.00916.70
7.2.40.0090.00017.07
7.2.30.0060.00916.75
7.2.20.0030.00916.68
7.2.10.0030.00616.77
7.2.00.0060.00518.06
7.1.330.0030.01015.77
7.1.320.0040.00415.63
7.1.310.0070.00715.46
7.1.300.0030.01015.94
7.1.290.0000.01115.67
7.1.280.0030.01015.82
7.1.270.0030.00715.56
7.1.260.0050.00915.86
7.1.250.0110.00316.07
7.1.240.0040.00715.79
7.1.230.0070.00715.68
7.1.220.0120.00316.00
7.1.210.0070.00315.98
7.1.200.0050.00815.70
7.1.190.0060.00915.95
7.1.180.0060.00616.00
7.1.170.0040.00415.54
7.1.160.0030.01015.95
7.1.150.0040.01115.79
7.1.140.0040.00415.96
7.1.130.0030.00615.88
7.1.120.0030.00915.91
7.1.110.0060.00315.64
7.1.100.0050.00816.94
7.1.90.0040.00815.43
7.1.80.0060.00915.80
7.1.70.0090.00416.42
7.1.60.0070.01017.38
7.1.50.0050.00816.32
7.1.40.0070.00715.77
7.1.30.0080.00315.80
7.1.20.0090.00615.86
7.1.10.0040.00815.75
7.1.00.0070.04018.98
7.0.330.0100.00315.24
7.0.320.0000.01315.35
7.0.310.0040.00815.20
7.0.300.0030.00715.45
7.0.290.0000.01215.49
7.0.280.0090.00615.55
7.0.270.0030.00915.65
7.0.260.0030.00915.55
7.0.250.0030.01015.23
7.0.240.0070.00415.51
7.0.230.0030.01015.45
7.0.220.0180.00015.48
7.0.210.0070.00715.57
7.0.200.0070.00315.97
7.0.190.0000.00815.48
7.0.180.0000.00815.14
7.0.170.0030.01015.22
7.0.160.0070.01015.30
7.0.150.0070.01015.21
7.0.140.0080.00415.37
7.0.130.0100.00315.00
7.0.120.0110.00015.57
7.0.110.0040.00815.17
7.0.100.0000.01415.34
7.0.90.0060.00615.50
7.0.80.0000.01015.51
7.0.70.0070.00715.47
7.0.60.0130.04318.39
7.0.50.0050.02316.71
7.0.40.0050.04316.85
7.0.30.0120.03616.77
7.0.20.0210.04116.76
7.0.10.0060.03916.80
7.0.00.0050.04816.86
5.6.400.0000.01514.61
5.6.390.0100.00714.32
5.6.380.0000.01614.62
5.6.370.0120.00414.44
5.6.360.0070.00414.23
5.6.350.0040.00414.58
5.6.340.0070.01014.58
5.6.330.0090.00314.55
5.6.320.0090.00614.38
5.6.310.0000.01314.39
5.6.300.0060.01214.31
5.6.290.0060.00614.34
5.6.280.0050.01917.54
5.6.270.0080.00614.37
5.6.260.0070.01014.52
5.6.250.0030.01014.50
5.6.240.0040.00814.35
5.6.230.0120.00614.57
5.6.220.0000.01314.38
5.6.210.0060.04217.54
5.6.200.0070.05016.20
5.6.190.0080.02417.21
5.6.180.0310.03917.41
5.6.170.0190.02717.44
5.6.160.0070.03917.35
5.6.150.0070.02816.19
5.6.140.0080.02016.10
5.6.130.0050.02916.17
5.6.120.0100.02217.51
5.6.110.0120.03517.75
5.6.100.0030.05217.61
5.6.90.0050.03817.75
5.6.80.0070.04017.31
5.6.70.0040.00414.32
5.6.60.0040.00714.52
5.6.50.0070.00713.98
5.6.40.0070.00713.91
5.6.30.0040.01214.14
5.6.20.0030.01014.00
5.6.10.0030.00914.14
5.6.00.0030.01014.17
5.5.380.0090.00614.11
5.5.370.0090.00614.43
5.5.360.0060.00314.52
5.5.350.0170.04217.16
5.5.340.0060.04016.05
5.5.330.0030.03917.26
5.5.320.0180.02817.17
5.5.310.0230.03317.13
5.5.300.0070.03815.87
5.5.290.0110.03615.96
5.5.280.0030.05017.58
5.5.270.0080.03217.45
5.5.260.0130.03717.30
5.5.250.0120.04317.42
5.5.240.0190.01517.09
5.5.230.0030.00914.06
5.5.220.0100.00614.11
5.5.210.0070.00714.16
5.5.200.0050.00514.05
5.5.190.0040.00813.81
5.5.180.0030.01014.25
5.5.170.0030.00614.18
5.5.160.0060.00614.23
5.5.150.0040.00714.23
5.5.140.0100.00314.03
5.5.130.0100.00713.98
5.5.120.0110.00414.24
5.5.110.0040.01214.08
5.5.100.0000.01314.21
5.5.90.0060.00314.08
5.5.80.0070.00714.29
5.5.70.0080.00413.89
5.5.60.0040.00813.85
5.5.50.0030.01014.21
5.5.40.0090.00314.05
5.5.30.0030.01414.07
5.5.20.0060.00914.21
5.5.10.0030.00614.04
5.5.00.0080.00614.06

preferences:
38.1 ms | 401 KiB | 5 Q