3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { protected $test = ''; } $test = new Test(); echo 'before' . PHP_EOL; foreach ($test as $key => $value) { echo $key . ' ' . $value . PHP_EOL; } $test->testing = 'testing'; $test->_testing = 'testing2'; echo 'after' . PHP_EOL; foreach ($test as $key => $value) { echo $key . ' ' . $value . PHP_EOL; } var_dump($test); $test2 = unserialize(base64_decode(base64_encode(serialize($test)))); var_dump($test2); echo 'round2' . PHP_EOL; foreach ($test as $key => $value) { echo $key . ' ' . $value . 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)
8.3.60.0160.00618.43
8.3.50.0120.00616.41
8.3.40.0070.00718.75
8.3.30.0090.00618.89
8.3.20.0050.00321.81
8.3.10.0040.00423.66
8.3.00.0050.00318.09
8.2.180.0110.00416.63
8.2.170.0030.01422.96
8.2.160.0100.00321.07
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00420.52
8.2.120.0040.00426.35
8.2.110.0070.00321.00
8.2.100.0060.00617.91
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0030.00617.93
8.2.50.0000.00818.10
8.2.40.0030.00620.64
8.2.30.0040.00419.24
8.2.20.0000.00817.93
8.2.10.0000.00817.96
8.2.00.0000.00717.96
8.1.280.0110.00425.92
8.1.270.0140.00023.80
8.1.260.0030.00626.35
8.1.250.0050.00328.09
8.1.240.0090.00022.02
8.1.230.0040.00817.42
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0060.00317.48
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0060.00318.59
8.1.160.0000.00718.87
8.1.150.0050.00221.97
8.1.140.0040.00417.74
8.1.130.0000.00718.95
8.1.120.0050.00317.38
8.1.110.0000.00717.39
8.1.100.0000.00817.52
8.1.90.0050.00317.49
8.1.80.0040.00417.47
8.1.70.0030.00317.48
8.1.60.0000.01217.57
8.1.50.0080.00017.42
8.1.40.0040.00417.55
8.1.30.0030.00517.62
8.1.20.0050.00317.62
8.1.10.0030.00617.47
8.1.00.0050.00217.37
8.0.300.0070.00018.77
8.0.290.0080.00016.63
8.0.280.0030.00318.43
8.0.270.0080.00317.16
8.0.260.0030.00316.88
8.0.250.0040.00416.88
8.0.240.0040.00417.02
8.0.230.0000.00717.00
8.0.220.0000.00716.96
8.0.210.0050.00317.01
8.0.200.0030.00316.99
8.0.190.0040.00416.96
8.0.180.0030.00517.05
8.0.170.0000.00717.03
8.0.160.0000.00716.97
8.0.150.0030.00516.93
8.0.140.0000.00716.88
8.0.130.0060.00313.46
8.0.120.0050.00216.93
8.0.110.0000.00717.05
8.0.100.0070.00016.90
8.0.90.0040.00416.85
8.0.80.0140.00716.83
8.0.70.0040.00416.81
8.0.60.0040.00416.91
8.0.50.0060.00316.83
8.0.30.0110.00817.12
8.0.20.0100.01017.41
8.0.10.0080.00016.86
8.0.00.0150.01116.50
7.4.330.0070.00015.55
7.4.320.0000.00616.61
7.4.300.0000.00616.40
7.4.290.0050.00316.59
7.4.280.0060.00216.58
7.4.270.0030.00316.52
7.4.260.0030.00316.65
7.4.250.0000.00816.54
7.4.240.0050.00216.40
7.4.230.0050.00216.35
7.4.220.0070.02016.68
7.4.210.0110.00916.52
7.4.200.0050.00316.50
7.4.160.0030.01216.40
7.4.150.0170.00017.40
7.4.140.0100.01117.86
7.4.130.0110.01516.49
7.4.120.0140.00816.52
7.4.110.0110.00616.50
7.4.100.0110.00716.50
7.4.90.0050.01316.58
7.4.80.0050.01219.39
7.4.70.0060.01016.44
7.4.60.0120.00616.29
7.4.50.0100.00316.20
7.4.40.0100.00716.38
7.4.30.0060.01216.55
7.4.00.0070.00814.98
7.3.330.0040.00413.17
7.3.320.0030.00313.18
7.3.310.0000.00816.41
7.3.300.0070.00016.16
7.3.290.0090.00716.29
7.3.280.0100.00816.32
7.3.270.0140.00517.40
7.3.260.0090.01316.55
7.3.250.0100.00816.57
7.3.240.0120.01216.53
7.3.230.0130.01016.38
7.3.210.0090.00916.54
7.3.200.0140.00316.41
7.3.190.0150.00316.47
7.3.180.0060.01116.54
7.3.170.0120.00916.54
7.3.160.0000.01616.48
7.3.120.0100.00715.13
7.3.110.0070.01014.46
7.3.100.0060.00915.00
7.3.90.0040.00714.75
7.3.80.0100.00714.70
7.3.70.0030.00714.75
7.3.60.0000.01314.89
7.3.50.0080.00314.63
7.3.40.0110.00414.89
7.3.30.0100.00714.74
7.3.20.0090.00016.46
7.3.10.0090.00316.85
7.3.00.0030.00916.69
7.2.330.0150.00316.82
7.2.320.0120.00616.72
7.2.310.0150.00316.80
7.2.300.0130.00616.70
7.2.290.0090.00916.78
7.2.250.0080.00815.34
7.2.240.0060.00915.27
7.2.230.0030.01315.31
7.2.220.0090.00615.10
7.2.210.0110.00415.26
7.2.200.0070.00315.20
7.2.190.0040.00715.05
7.2.180.0070.00415.12
7.2.170.0120.00415.12
7.2.130.0090.00916.98
7.2.120.0000.01416.91
7.2.110.0100.00716.73
7.2.100.0040.01217.05
7.2.90.0030.00716.93
7.2.80.0060.00916.95
7.2.70.0110.00716.70
7.2.60.0070.01016.98
7.2.50.0100.00617.04
7.2.40.0040.01516.64
7.2.30.0100.00717.01
7.2.20.0070.00716.85
7.2.10.0150.00716.91
7.2.00.0030.00818.32
7.1.330.0030.01015.75
7.1.320.0030.00715.79
7.1.310.0040.00415.72
7.1.300.0090.00315.82
7.1.290.0000.01215.81
7.1.280.0070.01015.53
7.1.270.0040.00415.74
7.1.260.0060.00615.56
7.1.250.0080.00415.54
7.1.240.0030.00615.43
7.1.230.0070.00715.71
7.1.220.0090.00915.74
7.1.210.0080.00615.70
7.1.200.0080.00515.69
7.1.190.0030.01015.63
7.1.180.0060.00315.89
7.1.170.0070.00715.66
7.1.160.0100.00315.95
7.1.150.0000.01015.77
7.1.140.0000.01415.98
7.1.130.0030.01015.71
7.1.120.0040.01115.73
7.1.110.0140.00415.65
7.1.100.0030.01016.99
7.1.90.0030.01015.89
7.1.80.0070.00315.51
7.1.70.0050.00716.48
7.1.60.0040.00716.25
7.1.50.0020.00916.41
7.1.40.0070.00716.15
7.1.30.0040.00716.18
7.1.20.0050.00716.17
7.1.10.0000.01116.25
7.1.00.0040.00716.20
7.0.330.0050.00315.29
7.0.320.0000.01015.18
7.0.310.0060.00915.50
7.0.300.0000.01515.60
7.0.290.0110.00415.10
7.0.280.0030.01015.39
7.0.270.0060.00615.38
7.0.260.0060.00615.11
7.0.250.0090.00315.26
7.0.240.0060.00615.39
7.0.230.0000.00815.52
7.0.220.0030.01015.16
7.0.210.0060.00915.36
7.0.200.0070.00416.01
7.0.190.0060.00316.02
7.0.180.0040.00615.83
7.0.170.0050.00515.92
7.0.160.0050.00615.85
7.0.150.0030.00715.73
7.0.140.0020.00715.85
7.0.130.0020.00615.88
7.0.120.0030.00715.79
7.0.110.0080.00315.92
7.0.100.0080.00615.98
7.0.90.0030.00715.93
7.0.80.0050.00815.92
7.0.70.0020.00716.01
7.0.60.0030.00715.73
7.0.50.0030.00515.82
7.0.40.0050.00514.17
7.0.30.0020.00614.15
7.0.20.0030.00514.22
7.0.10.0020.00614.24
7.0.00.0010.00714.20
5.6.380.0060.00614.13
5.6.370.0040.01114.28
5.6.360.0030.00914.32
5.6.350.0070.00714.61
5.6.340.0030.00614.30
5.6.330.0080.00614.13
5.6.320.0060.00614.34
5.6.310.0060.00814.14
5.6.300.0030.02617.38
5.6.290.0100.01917.66
5.6.280.0100.02317.57
5.6.270.0020.02917.60
5.6.260.0070.01917.63
5.6.250.0030.02417.68
5.6.240.0050.02417.48
5.6.230.0040.02617.57
5.6.220.0040.02317.50
5.6.210.0100.02217.34
5.6.200.0040.02517.50
5.6.190.0080.02217.58
5.6.180.0060.02817.56
5.6.170.0040.02417.64
5.6.160.0030.02617.58
5.6.150.0060.02417.53
5.6.140.0070.02417.49
5.6.130.0070.03317.65
5.6.120.0050.04817.65
5.6.110.0050.03317.56
5.6.100.0030.02417.57
5.6.90.0040.02517.48
5.6.80.0030.02417.18
5.6.70.0080.02517.12
5.6.60.0020.02617.22
5.6.50.0000.02517.23
5.6.40.0030.04517.34
5.6.30.0090.03217.20
5.6.20.0050.02317.18
5.6.10.0070.03217.26
5.6.00.0030.02517.05
5.5.380.0020.03614.28
5.5.370.0050.03914.44
5.5.360.0020.02714.27
5.5.350.0050.02214.57
5.5.340.0090.01714.53
5.5.330.0030.02314.67
5.5.320.0020.02414.78
5.5.310.0030.02214.56
5.5.300.0080.02014.52
5.5.290.0020.02714.55
5.5.280.0050.02414.58
5.5.270.0050.02214.71
5.5.260.0030.02414.60
5.5.250.0080.02214.49
5.5.240.0080.02114.43
5.5.230.0060.01914.38
5.5.220.0070.02214.33
5.5.210.0000.02513.96
5.5.200.0030.04314.18
5.5.190.0050.02714.35
5.5.180.0030.02614.15
5.5.170.0030.00311.07
5.5.160.0030.02314.01
5.5.150.0080.03014.37
5.5.140.0000.02414.13
5.5.130.0030.02214.32
5.5.120.0020.04014.38
5.5.110.0050.02314.26
5.5.100.0050.04214.36
5.5.90.0030.02814.02
5.5.80.0050.03914.20
5.5.70.0080.02314.27
5.5.60.0070.02714.13
5.5.50.0020.02414.31
5.5.40.0030.04614.02
5.5.30.0040.02614.28
5.5.20.0030.02314.17
5.5.10.0070.03914.29
5.5.00.0060.01914.13
5.4.450.0000.04515.25
5.4.440.0040.02215.23
5.4.430.0020.02615.25
5.4.420.0040.02315.23
5.4.410.0030.02215.08
5.4.400.0030.02315.00
5.4.390.0020.02614.92
5.4.380.0100.01614.95
5.4.370.0060.02115.12
5.4.360.0030.02115.04
5.4.350.0060.02014.99
5.4.340.0020.02415.13
5.4.330.0060.00010.84
5.4.320.0030.02015.05
5.4.310.0060.01815.11
5.4.300.0000.02614.97
5.4.290.0020.04415.22
5.4.280.0060.02915.29
5.4.270.0050.03314.96
5.4.260.0040.02215.03
5.4.250.0070.03514.95
5.4.240.0040.04215.15
5.4.230.0050.03814.88
5.4.220.0030.04115.22
5.4.210.0060.03415.04
5.4.200.0040.03415.00
5.4.190.0010.04614.84
5.4.180.0060.03015.00
5.4.170.0040.02415.01
5.4.160.0030.02415.11
5.4.150.0010.02414.90
5.4.140.0020.02513.83
5.4.130.0030.02114.01
5.4.120.0060.02114.04
5.4.110.0020.02213.74
5.4.100.0050.02114.00
5.4.90.0120.01913.63
5.4.80.0050.01813.71
5.4.70.0060.01713.88
5.4.60.0040.02013.75
5.4.50.0060.01813.78
5.4.40.0020.03513.85
5.4.30.0050.01913.63
5.4.20.0070.01713.91
5.4.10.0060.02813.82
5.4.00.0050.02813.69
5.3.290.0040.02212.72
5.3.280.0000.02712.79
5.3.270.0030.04712.67
5.3.260.0060.02912.78
5.3.250.0020.02312.68
5.3.240.0000.02512.76
5.3.230.0020.02312.74
5.3.220.0010.02212.61
5.3.210.0020.02512.61
5.3.200.0050.01912.70
5.3.190.0060.01812.59
5.3.180.0000.02212.71
5.3.170.0040.01912.71
5.3.160.0000.02312.79
5.3.150.0020.02212.62
5.3.140.0060.02212.77
5.3.130.0060.02112.70
5.3.120.0030.03412.59
5.3.110.0030.02012.70
5.3.100.0080.02212.74
5.3.90.0050.03212.74
5.3.80.0040.02012.69
5.3.70.0070.01512.68
5.3.60.0030.02012.64
5.3.50.0020.02212.55
5.3.40.0050.02012.69
5.3.30.0070.02912.72
5.3.20.0030.02212.66
5.3.10.0070.01612.51
5.3.00.0000.03412.66
5.2.170.0020.01912.24
5.2.160.0050.01312.29
5.2.150.0040.01612.24
5.2.140.0020.01812.22
5.2.130.0030.01512.13
5.2.120.0020.01712.16
5.2.110.0030.01512.23
5.2.100.0050.03212.28
5.2.90.0020.03012.13
5.2.80.0020.01812.10
5.2.70.0000.02012.22
5.2.60.0020.01712.21
5.2.50.0030.01712.16
5.2.40.0000.01812.20
5.2.30.0050.02612.03
5.2.20.0030.01812.13
5.2.10.0030.01512.04
5.2.00.0050.01312.13
5.1.60.0030.01411.96
5.1.50.0030.01311.96
5.1.40.0000.02311.96
5.1.30.0050.01211.96
5.1.20.0050.01211.96
5.1.10.0020.01511.96
5.1.00.0010.01711.96
5.0.50.0060.02411.96
5.0.40.0020.01311.96
5.0.30.0030.03111.96
5.0.20.0030.01211.96
5.0.10.0020.01011.96
5.0.00.0000.01811.96
4.4.90.0010.00911.96
4.4.80.0000.01111.96
4.4.70.0020.00911.96
4.4.60.0000.01011.96
4.4.50.0020.00911.96
4.4.40.0050.01011.96
4.4.30.0040.00611.96
4.4.20.0030.01811.96
4.4.10.0010.01011.96
4.4.00.0000.01511.96
4.3.110.0030.00811.96
4.3.100.0040.00911.96
4.3.90.0000.01011.96
4.3.80.0010.01411.96
4.3.70.0030.00811.96
4.3.60.0020.00811.96
4.3.50.0050.00611.96
4.3.40.0010.01411.96
4.3.30.0000.01111.96
4.3.20.0010.01011.96
4.3.10.0010.01011.96
4.3.00.0020.01011.96

preferences:
66.28 ms | 400 KiB | 5 Q