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What Are the Differences Between PSR-0 and PSR-4?

...rc/, with PSR-0 it means it will look for Acme\Foo\Bar in src/Acme/Foo/Bar.php while in PSR-4 it will look for it in src/Bar.php, allowing for shorter directory structures. On the other hand some prefer to have the full directory structure to clearly see what is in which namespace, so you can also s...
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Prevent direct access to a php include file

I have a php file which I will be using as exclusively as an include. Therefore I would like to throw an error instead of executing it when it's accessed directly by typing in the URL instead of being included. ...
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A numeric string as array key in PHP

Is it possible to use a numeric string like "123" as a key in a PHP array, without it being converted to an integer? 11 A...
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php is null or empty?

I have a question regarding NULL in PHP: 9 Answers 9 ...
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Creating default object from empty value in PHP?

I see this error only after upgrading my PHP environment to PHP 5.4 and beyond. The error points to this line of code: 16 A...
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裁员!裁员!创业者们的2016“寒冬大逃杀” - 资讯 - 清泛网 - 专注IT技能提升

...候,“什么时候盈利”忽然成了几乎每个投资人都会问的问题,但在之前的三轮融资都没有人提过。当时大家关心的都是订单量、GMV和增速。 “无论公司当下有没有收入,从财务模型上看,都是要在收敛的、亏损是在变小的。...
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Show a number to two decimal places

What's the correct way to round a PHP string to two decimal places? 24 Answers 24 ...
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PHP Array to CSV

...SV($data); function array_to_CSV($data) { $outstream = fopen("php://output", 'r+'); fputcsv($outstream, $data, ',', '"'); rewind($outstream); $csv = fgets($outstream); fclose($outstream); return $csv; } – JohnnyFaldo ...
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JavaScript equivalent of PHP's in_array()

... notice you wanted to see if an array was inside another. According to the PHP documentation this is the expected behavior of PHP's in_array: $a = array(array('p', 'h'), array('p', 'r'), 'o'); if (in_array(array('p', 'h'), $a)) { echo "'ph' was found\n"; } if (in_array(array('f', 'i'), $a)) {...
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How do I compare two DateTime objects in PHP 5.2.8?

Having a look on the PHP documentation, the following two methods of the DateTime object would both seem to solve my problem: ...