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What does yield mean in PHP?

... 5.5. Trying to use yield before that version will result in various parse errors, depending on the code that follows the keyword. So if you get a parse error from that code, update your PHP. Sources and further reading: Official docs The original RFC kelunik's blog: An introduction to generators...
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Rails: Missing host to link to! Please provide :host parameter or set default_url_options[:host]

...lt_url_options to solve this same bug elsewhere, but now I'm getting this error when trying to use a URL helper inside an RSpec spec. I have no idea where it's expecting default_url_options to be set. ...
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What is the maximum possible length of a query string?

...portion of the URL. Attempts to use URLs longer than this produced a clear error message in Internet Explorer. Microsoft Edge (Browser) The limit appears to be around 81578 characters. See URL Length limitation of Microsoft Edge Chrome It stops displaying the URL after 64k characters, but can serve ...
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Getting the first index of an object

... There is an error in the above code. The typeof check should be typeof(i) – jacob.toye Feb 20 '12 at 0:25 ...
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Determine the line of code that causes a segmentation fault?

... +1 , Valgrind is so much faster / easier to use to spot memory errors. On non-optimized builds with debugging symbols, it tells you exactly where a segfault happened and why. – Tim Post♦ May 21 '10 at 16:38 ...
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How are feature_importances in RandomForestClassifier determined?

... the tree: for each internal node that splits on feature i you compute the error reduction of that node multiplied by the number of samples that were routed to the node and add this quantity to feature_importances[i]. The error reduction depends on the impurity criterion that you use (e.g. Gini, E...
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Access denied for user 'test'@'localhost' (using password: YES) except root user

...ote machine(Example workbench) etc., use following steps to eliminate this error on OS where MySQL is installed mysql -u root -p CREATE USER '<<username>>'@'%%' IDENTIFIED BY '<<password>>'; GRANT ALL PRIVILEGES ON * . * TO '<<username>>'@'%%'; FLUSH PRIVILEGES;...
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What's wrong with this 1988 C code?

...to him what was going on. He would have changed the macro for IN, with no errors and then the macro for OUT with the two errors, the second of which would be complaining about the semicolon he had just added. – jmoreno Dec 27 '11 at 22:07 ...
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How to configure an existing git repo to be shared by a UNIX group

...t rather than as www-data or whatever the owner is and as a result you get error: insufficient permission for adding an object to repository database .git/objects. I thought I'd fixed the ownership of all files/directories that were wrong by using find and -type d/type -f, but only this method got ...
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Padding is invalid and cannot be removed?

...rent set of keys for decryption than used for encryption you will get this error: Padding is invalid and cannot be removed If you are using some algorithm to dynamically generate keys that will not work. They need to be the same for both encryption and decryption. One common way is to have the...