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If isset $_POST

...age. There, it checks if the input mail is filled. If so then do something and if it is not filled, do something else. I don't understand why it always says that it is set, even if I send an empty form. What is missing or wrong? ...
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What does it mean if a Python object is “subscriptable” or not?

... meaning they contain other objects. This includes strings, lists, tuples, and dictionaries. share | improve this answer | follow | ...
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Why doesn't os.path.join() work in this case?

The below code will not join, when debugged the command does not store the whole path but just the last entry. 14 Answers ...
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Windows equivalent to UNIX pwd

How do I find the local path on windows in a command prompt? 10 Answers 10 ...
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MySQL Workbench: How to keep the connection alive

...ilable internet archive: Go to Edit -> Preferences -> SQL Editor and set to a higher value this parameter: DBMS connection read time out (in seconds). For instance: 86400. Close and reopen MySQL Workbench. Kill your previously query that probably is running and run the query again. ...
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How do you work with an array of jQuery Deferreds?

...then the schemas, then finally initialize the application with the schemas and urls for the various data objects. As the user navigates the application, data objects are loaded, validated against the schema, and displayed. As the user CRUDs the data, the schemas provide first-pass validation. ...
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How do I get the entity that represents the current user in Symfony2?

...ut the way to set up your providers in security.yml from Sf2 Documentation and try again. Best luck! share | improve this answer | follow | ...
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image.onload event and browser cache

...ge is loaded"); } img.src = "img.jpg"; Fiddle - tested on latest Firefox and Chrome releases. You can also use the answer in this post, which I adapted for a single dynamically generated image: var img = new Image(); // 'load' event $(img).on('load', function() { alert("image is loaded"); }); ...
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How can I visualize per-character differences in a unified diff file?

...y; otherwise type M-x diff-mode RET), go to the hunk you are interested in and hit C-c C-b for refine-hunk. Or step through the file one hunk at a time with M-n; that will do the refining automatically. share | ...
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How to check for null in Twig?

... And to check if something is not null, simply do {% if var is not null %} – J.-B. C. Sep 6 '12 at 19:31 4...