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How to escape single quotes in MySQL
...handle any escaping. For example (Java):
Connection conn = DriverManager.getConnection(driverUrl);
conn.setAutoCommit(false);
PreparedStatement prepped = conn.prepareStatement("INSERT INTO tbl(fileinfo) VALUES(?)");
String line = null;
while ((line = br.readLine()) != null) {
prepped.setString(...
PHP - iterate on string characters
...like to be able to do foreach , array_map , array_walk , array_filter etc. on the characters of a string.
9 Answers
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Is Haxe worth learning? [closed]
...fine classes/interfaces/enums/typedefs in the same way for JS, Flash, C++, etc. If those types you define do not depend on a specific platform API, they can be reused from platform to platform with no effort at all. All the platforms also share common APIs like XML access, HTTP connections and refle...
How to convert string to boolean php
...ordPress shortcode attributes that have values such as true, false, on, 0, etc. Great answer, should definitely be the accepted answer.
– AndyWarren
Jun 8 '17 at 17:49
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Should everything really be a bundle in Symfony 2.x?
...ices,
src/Vendor/Bundle — for bundles, like src/Vendor/Bundle/AppBundle,
etc.
This way, you would put in the AppBundle only that stuff that is really Symfony2 specific. If you decide to switch to another framework later, you would get rid of the Bundle namespace and replace it with the chosen fra...
New line in JavaScript alert box
...
you have to use double quotes to display special char like \n \t etc... in js alert box
for exemple in php script:
$string = 'Hello everybody \n this is an alert box';
echo "<script>alert(\"$string\")</script>";
But a second possible problem arrives when you want to display ...
How would I skip optional arguments in a function call?
...bj = new MyObjectClass();
$var = $obj->a(MyObjectClass::DEFAULT_A_B); //etc.
Note that this default constant is defined exactly once throughout the code (there is no value even in method declaration), so in case of some unexpected changes, you will always supply the function/method with correct...
How to force file download with PHP
...dd proper content type based on your file application/zip, application/pdf etc. - but only if you do not want to trigger the save-as dialog.
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Recursion or Iteration?
... they are designed (Fibonacci sequences, traversing a tree like structure, etc.). Recursion makes the algorithm more succinct and easier to understand (therefore shareable and reusable).
Also, some recursive algorithms use "Lazy Evaluation" which makes them more efficient than their iterative brot...
MongoDB与内存 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...MongoDB是如何使用内存的，答案自然就清楚了。
据说带着问题学习更有效，那就先看一个MongoDB服务器的top命令结果：
shell> top -p $(pidof mongod)
Mem: 32872124k total, 30065320k used, 2806804k free, 245020k buffers
Swap: 2097144k total, 100k used...