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Returning JSON from PHP to JavaScript?

I have a PHP script that's being called through jQuery AJAX. I want the PHP script to return the data in JSON format to the javascript. Here's the pseudo code in the PHP script: ...
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UIGestureRecognizer on UIImageView

...nEnabled = YES; UIPinchGestureRecognizer *pgr = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(handlePinch:)]; pgr.delegate = self; [imageView addGestureRecognizer:pgr]; [pgr release]; : : - (void)handlePinch:(UIPinchGestureRecognizer *)pinchGestureRecognizer { //handl...
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How can I clear or empty a StringBuilder? [duplicate]

... Two ways that work: Use stringBuilderObj.setLength(0). Allocate a new one with new StringBuilder() instead of clearing the buffer. share | improve this answer | ...
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std::vector versus std::array in C++

...owing elements behind the scenes). Since it stores the elements in memory allocated on the heap, it has some overhead in respect to static arrays. std::array is a template class that encapsulate a statically-sized array, stored inside the object itself, which means that, if you instantiate the cla...
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How to write a scalable Tcp/Ip based server

.... The main feature of these enhancements is the avoidance of the repeated allocation and synchronization of objects during high-volume asynchronous socket I/O. The Begin/End design pattern currently implemented by the System.Net.Sockets..::.Socket class requires a System..::.IAsyncResult object be ...
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Memcached vs APC which one should I choose? [closed]

...lways use an opcode cache, which APC is (also APC will get integrated into php6 iirc, so why not start using it now). You can/should use both for different purposes. share | improve this answer ...
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How to efficiently concatenate strings in go

... If you know the total length of the string that you're going to preallocate then the most efficient way to concatenate strings may be using the builtin function copy. If you don't know the total length before hand, do not use copy, and read the other answers instead. In my tests, that approa...
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How to resolve “must be an instance of string, string given” prior to PHP 7?

... Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar types are not type-hintable. In this case an object of the class string is expected, but you're giving it a (scalar) string. The error messa...
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How to get file_get_contents() to work with HTTPS?

...he following script to see if there is an https wrapper available for your php scripts. $w = stream_get_wrappers(); echo 'openssl: ', extension_loaded ('openssl') ? 'yes':'no', "\n"; echo 'http wrapper: ', in_array('http', $w) ? 'yes':'no', "\n"; echo 'https wrapper: ', in_array('https', $w) ? 'y...
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Solution for “Fatal error: Maximum function nesting level of '100' reached, aborting!” in PHP

... Increase the value of xdebug.max_nesting_level in your php.ini share | improve this answer | follow | ...