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Can an Option in a Select tag carry multiple values?

... options in a HTML form: (the data will be collected and processed using PHP) 15 Answers ...
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When to use self over $this?

In PHP 5, what is the difference between using self and $this ? 23 Answers 23 ...
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Memcache Vs. Memcached [duplicate]

Someone can explain me the difference between Memcache and Memcached in PHP environment? What are the advantages of one over the other? Can you also suggest the criteria used to choose between one or the other? ...
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How can I get the last 7 characters of a PHP string?

...r for the 2nd argument. $newstring = substr($dynamicstring, -7); From the php docs: string substr ( string $string , int $start [, int $length ] ) If start is negative, the returned string will start at the start'th character from the end of string. ...
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Remove useless zero digits from decimals in PHP

...n officially suggested method for typecasting... search "type juggling" on php.net – Gergely Lukacsy May 6 '16 at 8:44  |  show 2 more comment...
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SHA1 vs md5 vs SHA256: which to use for a PHP login?

I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt? ...
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How to push both value and key into PHP array

...to combine arrays and keep the keys of the added array. For example: <?php $arr1 = array('foo' => 'bar'); $arr2 = array('baz' => 'bof'); $arr3 = $arr1 + $arr2; print_r($arr3); // prints: // array( // 'foo' => 'bar', // 'baz' => 'bof', // ); So you could do $_GET += array('on...
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C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ p

...piler, whether today or 50 years from now. The abstract machine in the C++98/C++03 specification is fundamentally single-threaded. So it is not possible to write multi-threaded C++ code that is "fully portable" with respect to the spec. The spec does not even say anything about the atomicity of m...
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PHP - Merging two arrays into one array (also Remove Duplicates)

... array_unique(array_merge($array1,$array2), SORT_REGULAR); http://se2.php.net/manual/en/function.array-unique.php share | improve this answer | follow | ...
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Principal component analysis in Python

... ChristopheDChristopheD 95.7k2424 gold badges148148 silver badges167167 bronze badges ...