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How do I implement a callback in PHP?

How are callbacks written in PHP? 9 Answers 9 ...
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Uppercase Booleans vs. Lowercase in PHP

When I was learning PHP, I read somewhere that you should always use the upper case versions of booleans, TRUE and FALSE , because the "normal" lowercase versions, true and false , weren't "safe" to use. ...
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How can I store my users' passwords safely?

... MD5 ? I've just started looking into password security. I'm pretty new to PHP. 6 Answers ...
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Is a memory leak created if a MemoryStream in .NET is not closed?

...AK and how much LATER you mean... If by leak you mean "the memory remains allocated, unavailable for use, even though you're done using it" and by latter you mean anytime after calling dispose, then then yes there may be a leak, although its not permanent (i.e. for the life of your applications run...
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Can I get CONST's defined on a PHP class?

... are doing this a lot you may want to looking at caching the result. <?php class Profile { const LABEL_FIRST_NAME = "First Name"; const LABEL_LAST_NAME = "Last Name"; const LABEL_COMPANY_NAME = "Company"; } $refl = new ReflectionClass('Profile'); print_r($refl->getConstants()); ...
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MySQL maximum memory usage

...5-8 so called important settings. First off, not all of them matter - e.g. allocating a lot of resources to InnoDB and not using InnoDB doesn't make a lot of sense because those resources are wasted. Or - a lot of people suggest to up the max_connection variable -- well, little do they know it also...
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My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())

...or: initializing argument 1 of ‘std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*, const _Alloc&) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’ [-fpermissive] basic_string<_CharT, _Traits, _Alloc>:: ...
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How do I get the day of the week with Foundation?

... NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setDateFormat:@"EEEE"]; NSLog(@"%@", [dateFormatter stringFromDate:[NSDate date]]); outputs current day of week as a string in locale dependent on current regional settings. To g...
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AJAX POST and Plus Sign ( + ) — How to Encode?

I'm POSTing the contents of a form field via AJAX to a PHP script and using JavaScript to escape(field_contents) . The problem is that any plus signs are being stripped out and replaced by spaces. How can I safely 'encode' the plus sign and then appropriately 'decode' it on the PHP side? ...
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How do I get a PHP class constructor to call its parent's parent's constructor?

I need to have a class constructor in PHP call its parent's parent's (grandparent?) constructor without calling the parent constructor. ...