3v4l.org

run code in 300+ PHP versions simultaneously
<?php class SiteId { protected $id; public function __construct($id) { $this->id = $id; } public function getId() { return $this->id; } } $id = "1"; var_dump($id); $siteId = new SiteId($id); echo "Is Site ID a string? "; var_dump(is_string($siteId)); echo "\n"; $identifiers = []; $identifiers[$siteId->getId()][] = 'test'; var_dump(array_keys($identifiers));

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)
8.3.60.0100.01016.75
8.3.50.0100.01222.10
8.3.40.0070.00718.75
8.3.30.0110.00419.10
8.3.20.0040.00420.17
8.3.10.0050.00321.90
8.3.00.0030.00917.50
8.2.180.0070.00718.13
8.2.170.0140.00719.09
8.2.160.0170.00322.96
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0050.00319.36
8.2.110.0040.00419.27
8.2.100.0040.00817.63
8.2.90.0000.00719.26
8.2.80.0030.00617.97
8.2.70.0000.00817.75
8.2.60.0050.00317.93
8.2.50.0040.00418.07
8.2.40.0040.00418.34
8.2.30.0070.00017.93
8.2.20.0080.00017.66
8.2.10.0030.00518.05
8.2.00.0040.00417.60
8.1.280.0070.00725.92
8.1.270.0040.00420.30
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0040.00422.81
8.1.230.0090.00317.48
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0070.00417.35
8.1.190.0090.00017.22
8.1.180.0030.00618.10
8.1.170.0050.00520.13
8.1.160.0000.00721.94
8.1.150.0040.00418.87
8.1.140.0040.00417.26
8.1.130.0030.00317.78
8.1.120.0000.00817.33
8.1.110.0040.00417.27
8.1.100.0030.00317.27
8.1.90.0070.00017.22
8.1.80.0000.00717.41
8.1.70.0070.00017.36
8.1.60.0030.00517.65
8.1.50.0000.00717.44
8.1.40.0060.00317.47
8.1.30.0030.00617.68
8.1.20.0000.00917.71
8.1.10.0000.00817.51
8.1.00.0060.00317.48
8.0.300.0040.00418.77
8.0.290.0000.00816.88
8.0.280.0030.00318.43
8.0.270.0040.00417.25
8.0.260.0030.00317.26
8.0.250.0030.00316.84
8.0.240.0030.00316.81
8.0.230.0050.00216.95
8.0.220.0000.00716.69
8.0.210.0070.00016.66
8.0.200.0000.00616.96
8.0.190.0040.00416.95
8.0.180.0030.00516.82
8.0.170.0030.00616.86
8.0.160.0080.00016.80
8.0.150.0030.00616.78
8.0.140.0000.00716.75
8.0.130.0030.00313.24
8.0.120.0050.00316.69
8.0.110.0000.00716.91
8.0.100.0040.00416.62
8.0.90.0000.00716.64
8.0.80.0090.01216.80
8.0.70.0070.00016.89
8.0.60.0030.00516.87
8.0.50.0040.00416.68
8.0.30.0130.01017.16
8.0.20.0090.01017.40
8.0.10.0050.00316.81
8.0.00.0080.01016.62
7.4.330.0030.00315.03
7.4.320.0070.00016.49
7.4.300.0000.00616.59
7.4.290.0000.00716.59
7.4.280.0030.00616.50
7.4.270.0000.00816.63
7.4.260.0000.00716.45
7.4.250.0070.00016.32
7.4.240.0050.00216.59
7.4.230.0050.00316.61
7.4.220.0060.01216.58
7.4.210.0080.00616.50
7.4.200.0050.00216.39
7.4.160.0120.00316.54
7.4.150.0120.00617.40
7.4.140.0080.01217.86
7.4.130.0090.00916.38
7.4.120.0110.00616.49
7.4.110.0070.01116.39
7.4.100.0090.01316.41
7.4.90.0060.01016.45
7.4.80.0090.00919.39
7.4.70.0060.01316.44
7.4.60.0060.00916.50
7.4.50.0030.00616.67
7.4.40.0040.01216.25
7.4.30.0100.01016.54
7.4.00.0040.01114.71
7.3.330.0000.00513.27
7.3.320.0100.00513.20
7.3.310.0000.00716.20
7.3.300.0030.00316.22
7.3.290.0040.00316.18
7.3.280.0060.01216.35
7.3.270.0170.00017.40
7.3.260.0170.00716.40
7.3.250.0120.00816.43
7.3.240.0160.00016.33
7.3.230.0080.01116.39
7.3.210.0100.00716.35
7.3.200.0130.00219.39
7.3.190.0060.01016.29
7.3.180.0110.01216.33
7.3.170.0030.01316.43
7.3.160.0110.00616.46
7.3.120.0070.00714.80
7.3.110.0030.01414.86
7.3.100.0040.01114.96
7.3.90.0120.00014.71
7.3.80.0120.00414.68
7.3.70.0060.00314.98
7.3.60.0070.00814.82
7.3.50.0040.01214.96
7.3.40.0070.01114.99
7.3.30.0100.00714.71
7.3.20.0030.01416.72
7.3.10.0070.01116.52
7.3.00.0040.01116.21
7.2.330.0100.01316.71
7.2.320.0070.01116.82
7.2.310.0070.01016.77
7.2.300.0080.00916.60
7.2.290.0100.00716.54
7.2.240.0030.01215.38
7.2.230.0070.00414.81
7.2.220.0070.01115.12
7.2.210.0110.00015.04
7.2.200.0070.01015.07
7.2.190.0100.00715.02
7.2.180.0070.00715.03
7.2.170.0060.01015.11
7.2.160.0060.00615.14
7.2.150.0070.00717.12
7.2.140.0070.01117.00
7.2.130.0100.00617.02
7.2.120.0070.01016.98
7.2.110.0070.01116.65
7.2.100.0040.00717.03
7.2.90.0110.00317.00
7.2.80.0060.00916.97
7.2.70.0070.00717.15
7.2.60.0030.01216.78
7.2.50.0030.01416.90
7.2.40.0060.00317.05
7.2.30.0100.00316.74
7.2.20.0090.00417.11
7.2.10.0040.00816.87
7.2.00.0070.00717.20
7.1.330.0000.01115.83
7.1.320.0090.00915.67
7.1.310.0070.00715.84
7.1.300.0030.00715.92
7.1.290.0070.00415.91
7.1.280.0100.00315.71
7.1.270.0080.00815.98
7.1.260.0080.00415.57
7.1.250.0040.00815.82
7.1.200.0060.00715.80
7.1.70.0040.00417.20
7.1.60.0090.00619.50
7.1.50.0130.01016.98
7.1.00.0130.06722.45
7.0.200.0770.00614.38
7.0.140.0030.04721.97
7.0.60.0130.07019.90
7.0.50.0100.06317.72
7.0.40.0070.04320.18
7.0.30.0400.07020.06
7.0.20.0170.08320.17
7.0.10.0300.05720.07
7.0.00.0100.08020.05
5.6.280.0030.07020.78
5.6.210.0300.05020.71
5.6.200.0100.06318.25
5.6.190.0130.07720.47
5.6.180.0270.08320.56
5.6.170.0370.07020.54
5.6.160.0100.08020.57
5.6.150.0100.07718.16
5.6.140.0070.03318.16
5.6.130.0000.09018.25
5.6.120.0000.04721.10
5.6.110.0300.06321.02
5.6.100.0000.09021.12
5.6.90.0130.08021.00
5.6.80.0070.08320.41
5.6.70.0400.05720.39
5.5.350.0270.04020.31
5.5.340.0030.05318.05
5.5.330.0130.05320.29
5.5.320.0200.07020.28
5.5.310.0270.08720.34
5.5.300.0030.08718.00
5.5.290.0070.03718.04
5.5.280.0070.04020.88
5.5.270.0000.04320.79
5.5.260.0100.08020.76
5.5.250.0030.04020.55
5.5.240.0170.07020.20
5.4.450.0270.05319.61
5.4.440.0830.07019.47
5.4.430.0030.06019.45
5.4.420.0500.07019.56
5.4.410.0100.06019.02
5.4.400.0330.06318.82
5.4.390.0200.07318.54
5.4.380.0400.05718.76
5.4.370.0470.05018.63
5.4.360.0570.06018.51
5.4.350.0400.06718.63
5.4.340.0400.05718.54
5.4.320.0630.06318.74
5.4.310.0370.05318.47
5.4.300.0300.06318.72
5.4.290.0400.05018.78
5.4.280.0430.05018.47
5.4.270.0330.05718.78
5.4.260.0300.06718.62
5.4.250.0470.05018.50
5.4.240.0400.06318.76
5.4.230.0330.05318.77
5.4.220.0500.06018.56
5.4.210.0530.05718.73
5.4.200.0270.05716.59
5.4.190.0500.06018.60
5.4.180.0370.07318.46
5.4.170.0430.08318.52
5.4.160.0400.07318.51
5.4.150.0600.06718.45
5.4.140.0670.06316.31
5.4.130.0470.06716.45
5.4.120.0400.06016.18
5.4.110.0630.04716.18
5.4.100.0430.07316.29
5.4.90.0670.06716.28
5.4.80.0570.06716.40
5.4.70.0570.08316.41
5.4.60.0530.06716.31
5.4.50.0470.07016.19
5.4.40.0570.06016.38
5.4.30.0430.05016.35
5.4.20.0530.06716.22
5.4.10.0470.05316.32
5.4.00.0370.05315.75
5.3.290.0430.07014.77
5.3.280.0500.06714.58
5.3.270.0430.06714.75
5.3.260.0530.07014.64
5.3.250.0500.07014.60
5.3.240.0630.04014.66
5.3.230.0430.06014.80
5.3.220.0500.07014.70
5.3.210.0330.05314.55
5.3.200.0330.05714.67
5.3.190.0430.07014.79
5.3.180.0370.07014.61
5.3.170.0370.05714.59
5.3.160.0400.07014.69
5.3.150.0470.07014.67
5.3.140.0230.06314.61
5.3.130.0170.07314.59
5.3.120.0870.06314.77
5.3.110.0500.06014.58
5.3.100.0530.06014.28
5.3.90.0370.05314.07
5.3.80.0330.06314.02
5.3.70.0570.04714.07
5.3.60.0370.05713.99
5.3.50.0500.06313.98
5.3.40.0300.06313.97
5.3.30.0430.05314.13
5.3.20.0430.05013.68
5.3.10.0400.06013.70
5.3.00.0330.07713.70
5.2.170.0400.05311.19
5.2.160.0300.04311.22
5.2.150.0370.03711.26
5.2.140.0300.04711.16
5.2.130.0200.04711.09
5.2.120.0400.03011.11
5.2.110.0300.04311.16
5.2.100.0430.02711.14
5.2.90.0230.04311.17
5.2.80.0270.04011.30
5.2.70.0430.05011.08
5.2.60.0230.04711.05
5.2.50.0270.04311.23
5.2.40.0200.04711.03
5.2.30.0230.05011.10
5.2.20.0300.04311.15
5.2.10.0400.03710.86
5.2.00.0230.04010.77
5.1.60.0230.04010.00
5.1.50.0230.03710.11
5.1.40.0300.03310.02
5.1.30.0300.03710.37
5.1.20.0270.04010.36
5.1.10.0230.04010.27
5.1.00.0370.04010.25
5.0.50.0170.0408.55
5.0.40.0130.0338.52
5.0.30.0130.0508.34
5.0.20.0200.0278.24
5.0.10.0270.0178.36
5.0.00.0130.0508.24
4.4.90.0130.0205.95
4.4.80.0170.0275.91
4.4.70.0130.0235.88
4.4.60.0270.0275.91
4.4.50.0030.0275.96
4.4.40.0170.0275.88
4.4.30.0070.0275.88
4.4.20.0070.0305.95
4.4.10.0070.0275.94
4.4.00.0130.0335.95
4.3.110.0070.0275.91
4.3.100.0130.0205.85
4.3.90.0170.0275.91
4.3.80.0170.0335.86
4.3.70.0100.0275.85
4.3.60.0170.0205.85
4.3.50.0200.0235.91
4.3.40.0200.0405.85
4.3.30.0070.0305.85
4.3.20.0100.0205.85
4.3.10.0030.0275.85
4.3.00.0130.0236.89

preferences:
38.73 ms | 401 KiB | 5 Q