3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { public function __get( $property ) { if ( 'bla' === $property ) { echo 'Initializing Text->bla' . PHP_EOL; $this->bla = 'Value'; return $this->bla; } $message = sprintf( 'Undefined property: %s::$%s', get_class(), $property ); trigger_error( $message, E_USER_NOTICE); return null; } public function test_unset( $offset ) { unset ( $this->bla[ $offset ] ); } } $test = new Test(); echo $test->bla[2] . PHP_EOL; $test->test_unset( 2 ); echo $test->bla . PHP_EOL; echo $test->bla . PHP_EOL; echo $test->bla . PHP_EOL; echo $test->kaka . PHP_EOL; echo $test->bla . PHP_EOL;

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)
8.3.60.0070.01418.55
8.3.50.0090.00616.42
8.3.40.0100.01018.96
8.3.30.0070.00718.89
8.3.20.0040.00420.07
8.3.10.0070.00421.76
8.3.00.0040.00419.91
8.2.180.0090.00618.66
8.2.170.0080.00822.96
8.2.160.0160.00018.89
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00419.38
8.2.120.0080.00026.35
8.2.110.0070.00422.18
8.2.100.0080.00319.27
8.2.90.0060.00317.60
8.2.80.0030.00519.11
8.2.70.0080.00017.93
8.2.60.0000.00818.22
8.2.50.0060.00319.45
8.2.40.0070.00020.46
8.2.30.0050.00319.39
8.2.20.0000.00818.16
8.2.10.0040.00417.97
8.2.00.0040.00418.03
8.1.280.0170.00325.92
8.1.270.0000.00722.24
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0050.00522.71
8.1.230.0090.00319.15
8.1.220.0080.00017.74
8.1.210.0000.00918.77
8.1.200.0050.00517.35
8.1.190.0050.00317.35
8.1.180.0050.00318.10
8.1.170.0000.01118.66
8.1.160.0000.00819.06
8.1.150.0000.01120.74
8.1.140.0050.00219.49
8.1.130.0030.00319.00
8.1.120.0030.00317.50
8.1.110.0060.00317.45
8.1.100.0000.00717.42
8.1.90.0070.00017.48
8.1.80.0070.00017.41
8.1.70.0040.00417.47
8.1.60.0000.00917.54
8.1.50.0000.00917.48
8.1.40.0030.00617.39
8.1.30.0050.00317.62
8.1.20.0080.00017.67
8.1.10.0020.00517.48
8.1.00.0040.00417.49
8.0.300.0000.00719.61
8.0.290.0080.00016.63
8.0.280.0070.00018.38
8.0.270.0040.00417.37
8.0.260.0030.00316.80
8.0.250.0030.00317.00
8.0.240.0000.00717.04
8.0.230.0030.00316.91
8.0.220.0040.00416.93
8.0.210.0030.00416.91
8.0.200.0060.00016.96
8.0.190.0040.00416.99
8.0.180.0030.00317.03
8.0.170.0000.00916.89
8.0.160.0000.00717.02
8.0.150.0080.00016.99
8.0.140.0040.00416.96
8.0.130.0030.00313.39
8.0.120.0080.00016.85
8.0.110.0070.00016.85
8.0.100.0070.00016.82
8.0.90.0000.00717.02
8.0.80.0080.00816.96
8.0.70.0000.00716.80
8.0.60.0040.00416.79
8.0.50.0000.00716.85
8.0.30.0070.01017.33
8.0.20.0110.00817.40
8.0.10.0040.00417.02
8.0.00.0050.01116.78
7.4.330.0060.00015.55
7.4.320.0000.00616.58
7.4.300.0030.00316.42
7.4.290.0030.00316.57
7.4.280.0110.00016.64
7.4.270.0040.00416.49
7.4.260.0030.00516.49
7.4.250.0030.00316.48
7.4.240.0000.00716.50
7.4.230.0020.00516.49
7.4.220.0080.01116.59
7.4.210.0080.00716.62
7.4.200.0000.00716.59
7.4.160.0060.01016.71
7.4.150.0060.01217.40
7.4.140.0080.01117.86
7.4.130.0120.00916.41
7.4.120.0140.00716.52
7.4.110.0100.00716.65
7.4.100.0090.00916.36
7.4.90.0130.00316.57
7.4.80.0080.01619.39
7.4.70.0100.00716.59
7.4.60.0040.01216.43
7.4.50.0040.00816.46
7.4.40.0030.01316.63
7.4.30.0060.00916.51
7.4.00.0080.00814.92
7.3.330.0020.00213.50
7.3.320.0000.00513.44
7.3.310.0030.00316.39
7.3.300.0000.00716.30
7.3.290.0030.00316.27
7.3.280.0090.00816.41
7.3.270.0000.02117.40
7.3.260.0060.01516.44
7.3.250.0050.01216.42
7.3.240.0110.00916.55
7.3.230.0080.00816.58
7.3.210.0100.00716.45
7.3.200.0090.00616.32
7.3.190.0070.01116.58
7.3.180.0110.00816.40
7.3.170.0110.00516.53
7.3.160.0030.01716.57
7.3.120.0040.01414.79
7.3.110.0070.01014.86
7.3.100.0030.01614.77
7.3.90.0090.00614.84
7.3.80.0100.00314.99
7.3.70.0100.00614.95
7.3.60.0030.01014.87
7.3.50.0040.01415.04
7.3.40.0070.00714.60
7.3.30.0070.00714.88
7.3.20.0050.00516.76
7.3.10.0030.01016.59
7.3.00.0040.00716.52
7.2.330.0070.01016.71
7.2.320.0070.01116.50
7.2.310.0060.01116.78
7.2.300.0080.00816.66
7.2.290.0150.01316.79
7.2.250.0060.01215.37
7.2.240.0070.01315.26
7.2.230.0000.01214.87
7.2.220.0070.00715.29
7.2.210.0040.01114.74
7.2.200.0080.00615.04
7.2.190.0090.00615.26
7.2.180.0080.00415.03
7.2.170.0030.01315.03
7.2.160.0040.00415.24
7.2.150.0070.00716.77
7.2.140.0030.00816.95
7.2.130.0020.01016.91
7.2.120.0080.00616.87
7.2.110.0040.00916.90
7.2.100.0060.00616.90
7.2.90.0080.00616.90
7.2.80.0070.00916.94
7.2.70.0050.00916.89
7.2.60.0040.00916.99
7.2.50.0040.01016.87
7.2.40.0040.00817.01
7.2.30.0110.00416.91
7.2.20.0080.00717.00
7.2.10.0080.00416.99
7.2.00.0010.01317.50
7.1.330.0070.01115.79
7.1.320.0120.00316.04
7.1.310.0070.00715.81
7.1.300.0060.00615.91
7.1.290.0070.00715.98
7.1.280.0040.01115.77
7.1.270.0040.01115.84
7.1.260.0040.01215.71
7.1.250.0070.00815.79
7.1.240.0030.01115.86
7.1.230.0030.01015.55
7.1.220.0030.00515.77
7.1.210.0120.00615.47
7.1.200.0100.00515.92
7.1.190.0060.00615.87
7.1.180.0060.00915.91
7.1.170.0120.00615.67
7.1.160.0060.00316.03
7.1.150.0120.00915.61
7.1.140.0070.00715.90
7.1.130.0030.01015.85
7.1.120.0030.01315.69
7.1.110.0030.00615.91
7.1.100.0040.00717.01
7.1.90.0070.01015.73
7.1.80.0060.00615.81
7.1.70.0030.01116.60
7.1.60.0090.01325.40
7.1.50.0110.01025.33
7.1.40.0120.01325.20
7.1.30.0140.01025.21
7.1.20.0090.01225.19
7.1.10.0060.01116.24
7.1.00.0060.00916.09
7.0.330.0070.01015.43
7.0.320.0030.01015.50
7.0.310.0000.01615.39
7.0.300.0070.00315.47
7.0.290.0000.01415.46
7.0.280.0120.00415.46
7.0.270.0060.00615.45
7.0.260.0030.00815.57
7.0.250.0100.00615.31
7.0.240.0040.01115.45
7.0.230.0080.00815.50
7.0.220.0060.00615.62
7.0.210.0030.01015.38
7.0.200.0040.00916.01
7.0.190.0050.00816.19
7.0.180.0060.00815.94
7.0.170.0070.00715.86
7.0.160.0090.00715.75
7.0.150.0030.01015.73
7.0.140.0080.00815.92
7.0.130.0040.01015.99
7.0.120.0030.01516.04
7.0.110.0040.01215.93
7.0.100.0040.01015.77
7.0.90.0060.00915.88
7.0.80.0090.00715.92
7.0.70.0040.01315.77
7.0.60.0060.01015.75
7.0.50.0060.01215.78
7.0.40.0060.01114.92
7.0.30.0060.00914.95
7.0.20.0060.00915.18
7.0.10.0060.00915.09
7.0.00.0060.00915.04
5.6.400.0120.00414.44
5.6.390.0000.01014.67
5.6.380.0080.00614.52
5.6.370.0030.01214.36
5.6.360.0030.01514.43
5.6.350.0090.00614.70
5.6.340.0070.01014.50
5.6.330.0130.00014.70
5.6.320.0070.01014.47
5.6.310.0060.00914.64
5.6.300.0040.00414.43
5.6.290.0070.00414.56
5.6.280.0030.00614.54
5.6.270.0030.00914.46
5.6.260.0000.01014.22
5.6.250.0030.00914.23
5.6.240.0060.00614.16
5.6.230.0000.00914.45
5.6.220.0060.00614.41
5.6.210.0030.01414.31
5.6.200.0030.01414.39
5.6.190.0090.00314.54
5.6.180.0030.01014.31
5.6.170.0070.00714.54
5.6.160.0110.00414.09
5.6.150.0060.00314.60
5.6.140.0100.00614.11
5.6.130.0030.01313.95
5.6.120.0100.01014.49
5.6.110.0050.00914.03
5.6.100.0070.01114.52
5.6.90.0070.00714.35
5.6.80.0110.00914.25
5.6.70.0060.00614.35
5.6.60.0040.01114.25
5.6.50.0030.01014.11
5.6.40.0030.01014.55
5.6.30.0090.00614.57
5.6.20.0030.01014.47
5.6.10.0070.01014.38
5.6.00.0030.00614.54

preferences:
49.78 ms | 400 KiB | 5 Q