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What is the purpose of “&&” in a shell command?
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&& lets you do som>me m>thing based on whether the previous command completed successfully - that's why you tend to see it chained as do_som>me m>thing && do_som>me m>thing_else_that_depended_on_som>me m>thing.
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Set a cookie to never expire
Looking at the php docum>me m>ntation on setting a cookie I see that I can set an expiration date for the cookie. You can set the cookie to expire at the end of the browser session or at som>me m> tim>me m> in the future but I do not see a way to set the cookie to never expire. Is this even possible and how is...
Make a float only show two decimal places
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show 4 more comm>me m>nts
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Use PPK file in Mac Terminal to connect to remote connection over SSH [closed]
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What does this error m>me m>an when I try to run the puttygen command? Enter passphrase to load key: Assertion failed: (random_active), function random_byte, file ./../sshrand.c, line 313. Abort trap: 6
– fastasleep
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How to convert a char array to a string?
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It would still work either way. The overloaded assignm>me m>nt operator takes a const char*, so you can pass it a string literal or char array (which decays to that).
– Mysticial
Jan 22 '12 at 9:19
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PHP PDO: charset, set nam>me m>s?
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You'll have it in your connection string like:
"mysql:host=$host;dbnam>me m>=$db;charset=utf8"
HOWEVER, prior to PHP 5.3.6, the charset option was ignored. If you're running an older version of PHP, you must do it like this:
$dbh = new PDO("mysql:$connstr", $user, $password);
$dbh->exec("set...
Return a value if no rows are found in Microsoft tSQL
...efer that false (0) is returned in that scenario. Looking for the simplest m>me m>thod to account for no records.
12 Answers
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Access POST values in Symfony2 request object
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this solution is deprecated since 2.3 and will be removed in 3.0, see docum>me m>ntation
$form->getData();
gives you an array for the form param>me m>ters
from symfony2 book page 162 (Chapter 12: Forms)
[...] som>me m>tim>me m>s, you may just want to use a form without a class, and get back an array of the submitt...
Programmatically relaunch/recreate an activity?
After I do som>me m> change in my database, that involves significant change in my views, I would like to redraw, re-execute onCreate.
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JavaScript: Create and save file [duplicate]
... It would be great if it worked in all browsers, but it has to work in Chrom>me m>. I want to do this all client-side.
13 Answe...