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MySQL check if a table exists without throwing an exception
...is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query?
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Which is a better way to check if an array has more than one element?
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I don something like : <pre> <code>for index in 0..<3 { guard let testTop:Prediciton = topPredictions[index] else { //your default object } predictionResult.append(testTop)...
Bogus foreign key constraint fail
...each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_table_to_drop;
DROP TABLE my_second_table_to_drop;
SET FOREIGN_KEY_CHECKS=1;
Where the SET FOREIGN_KEY_CHECKS=1 serves as an extr...
Using Eloquent ORM in Laravel to perform search of database using LIKE
...', '%' . $value . '%')->limit(25)->get();
return view('pages/search/index', compact('books'));
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How can I remove a character from a string using Javascript?
... one instance of r in the string.
However, it is always the character at index 4 (so the 5th character).
18 Answers
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Remove warning messages in PHP
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You really should fix whatever's causing the warning, but you can control visibility of errors with error_reporting(). To skip warning messages, you could use something like:
error_reporting(E_ERROR | E_PARSE);
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Markdown and including multiple files
...ations_of_markdown.mdpp
chapters/conclusions.mdpp
You would then need an index.mdpp that contained the following:
!INCLUDE "chapters/preface.mdpp"
!INCLUDE "chapters/introduction.mdpp"
!INCLUDE "chapters/why_markdown_is_useful.mdpp"
!INCLUDE "chapters/limitations_of_markdown.mdpp"
!INCLUDE "chapt...
Which is the fastest algorithm to find prime numbers?
...fo:
http://primes.utm.edu/prove/prove2_3.html and http://forums.nvidia.com/index.php?showtopic=70483
If you just need a way to generate very big prime numbers and don't care to generate all prime numbers < an integer n, you can use Lucas-Lehmer test to verify Mersenne prime numbers. A Mersenne p...
FormsAuthentication.SignOut() does not log the user out
...pted and redirected to the Login Page first)
return RedirectToAction( "Index", "Home" );
}
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After submitting a POST form open a new window showing the result
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var urlAction = 'whatever.php';
var data = {param1:'value1'};
var $form = $('<form target="_blank" method="POST" action="' + urlAction + '">');
$.each(data, function(k,v){
$form.append('<input type="hidden" name="' + k + '" value="' + v ...