3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { protected $titleInfo = []; public function bar() { $key = ''; if ( !isset( $this->titleInfo[$key] ) ) { $this->titleInfo[$key] = [ 42 ]; } var_dump( $this->titleInfo[$key] ); } } ( new Foo )->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)
8.3.70.0100.01016.50
8.3.60.0120.00616.75
8.3.50.0110.00721.09
8.3.40.0100.01018.51
8.3.30.0140.00418.54
8.3.20.0040.00421.76
8.3.10.0070.00022.10
8.3.00.0000.00723.66
8.2.180.0090.01316.75
8.2.170.0120.00419.07
8.2.160.0070.00722.96
8.2.150.0030.00724.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.79
8.2.110.0060.00322.20
8.2.100.0040.00817.72
8.2.90.0000.00817.63
8.2.80.0060.00318.97
8.2.70.0060.00617.72
8.2.60.0040.00417.93
8.2.50.0080.00018.07
8.2.40.0000.00818.22
8.2.30.0000.00718.11
8.2.20.0030.00518.17
8.2.10.0000.00719.17
8.2.00.0000.00719.30
8.1.280.0120.00325.92
8.1.270.0000.00822.14
8.1.260.0000.00826.35
8.1.250.0020.00528.09
8.1.240.0060.00320.73
8.1.230.0070.00717.77
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0080.00317.22
8.1.180.0110.00018.10
8.1.170.0040.00418.80
8.1.160.0000.00818.88
8.1.150.0040.00418.91
8.1.140.0040.00420.88
8.1.130.0040.00420.00
8.1.120.0030.00617.42
8.1.110.0050.00317.36
8.1.100.0060.00317.46
8.1.90.0070.00017.45
8.1.80.0020.00517.36
8.1.70.0000.00917.47
8.1.60.0040.00417.44
8.1.50.0030.00617.47
8.1.40.0030.00517.47
8.1.30.0040.00417.68
8.1.20.0050.00317.65
8.1.10.0000.00817.53
8.1.00.0090.00317.54
8.0.300.0120.00018.77
8.0.290.0040.00416.75
8.0.280.0080.00018.47
8.0.270.0070.00016.71
8.0.260.0040.00420.05
8.0.250.0030.00316.79
8.0.240.0000.00716.82
8.0.230.0000.00716.88
8.0.220.0000.00616.85
8.0.210.0050.00316.77
8.0.200.0030.00316.91
8.0.190.0060.00316.83
8.0.180.0040.00416.89
8.0.170.0030.00816.79
8.0.160.0040.00416.95
8.0.150.0050.00216.83
8.0.140.0030.00316.72
8.0.130.0060.00013.25
8.0.120.0070.00016.76
8.0.110.0040.00416.95
8.0.100.0030.00316.76
8.0.90.0040.00416.80
8.0.80.0130.00516.82
8.0.70.0040.00416.73
8.0.60.0000.00816.93
8.0.50.0030.00516.84
8.0.30.0100.00817.15
8.0.20.0120.00817.17
8.0.10.0070.00017.11
8.0.00.0080.01016.63
7.4.330.0050.00015.55
7.4.320.0030.00316.41
7.4.300.0030.00316.50
7.4.290.0030.00316.27
7.4.280.0040.00416.46
7.4.270.0100.00016.54
7.4.260.0030.00313.27
7.4.250.0070.00016.55
7.4.240.0040.00416.58
7.4.230.0040.00416.48
7.4.220.0020.00516.33
7.4.210.0090.00516.54
7.4.200.0030.00316.52
7.4.140.0130.00817.86
7.4.130.0130.00616.44
7.4.120.0180.00416.53
7.4.110.0070.01116.48
7.4.100.0120.00616.40
7.4.90.0040.01316.51
7.4.80.0060.01019.39
7.4.70.0080.00816.50
7.4.60.0030.01316.43
7.4.50.0150.00416.41
7.4.40.0130.01016.42
7.4.00.0080.01014.95
7.3.330.0040.00416.12
7.3.320.0000.00613.14
7.3.310.0040.00416.40
7.3.300.0060.00016.31
7.3.290.0020.01216.33
7.3.280.0120.00616.32
7.3.260.0110.01016.46
7.3.240.0150.00916.40
7.3.230.0070.01116.34
7.3.210.0150.00316.63
7.3.200.0100.00716.61
7.3.190.0090.00616.20
7.3.180.0080.00816.54
7.3.170.0090.01216.36
7.3.160.0130.00316.45
7.3.120.0100.00715.03
7.3.110.0070.01014.77
7.3.100.0100.00614.75
7.3.90.0130.00314.90
7.3.80.0090.00614.50
7.3.70.0020.00914.75
7.3.60.0130.00214.76
7.3.50.0080.00314.86
7.3.40.0020.01314.78
7.3.30.0040.00614.68
7.3.20.0060.01115.88
7.3.10.0060.00915.88
7.3.00.0030.01215.85
7.2.330.0070.01016.51
7.2.320.0170.00016.52
7.2.310.0140.00316.76
7.2.300.0080.00816.48
7.2.290.0070.01116.86
7.2.250.0150.00315.36
7.2.240.0030.01614.96
7.2.230.0060.00915.25
7.2.220.0040.00815.14
7.2.210.0030.01214.93
7.2.200.0080.00715.02
7.2.190.0050.00614.92
7.2.180.0060.00914.80
7.2.170.0050.01014.81
7.2.160.0000.01214.96
7.2.150.0150.00915.26
7.2.140.0110.00415.18
7.2.130.0110.00314.95
7.2.120.0040.00715.25
7.2.110.0060.01315.17
7.2.100.0080.00815.15
7.2.90.0470.01014.82
7.2.80.0070.00914.98
7.2.70.0090.00615.11
7.2.60.0060.01314.90
7.2.50.0110.00414.91
7.2.40.0060.01315.02
7.2.30.0080.00815.09
7.2.20.0030.00915.03
7.2.10.0110.01115.11
7.2.00.0090.00914.98
7.1.330.0040.01415.66
7.1.320.0070.01015.90
7.1.310.0060.00915.79
7.1.300.0080.00614.79
7.1.290.0080.00714.90
7.1.280.0070.00414.70
7.1.270.0060.00614.91
7.1.260.0070.00715.00
7.1.250.0100.00313.79

preferences:
64.12 ms | 401 KiB | 5 Q