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What does -> mean in Python function definitions?

...versions. According to this, the example you've supplied: def f(x) -> 123: return x will be forbidden in the future (and in current versions will be confusing), it would need to be changed to: def f(x) -> int: return x for it to effectively describe that function f returns an ob...
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How to retrieve Request Payload

I'm using PHP , ExtJS and ajax store . 2 Answers 2 ...
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Create or write/append in text file

...s: $txt = "user id date"; $myfile = file_put_contents('logs.txt', $txt.PHP_EOL , FILE_APPEND | LOCK_EX); share | improve this answer | follow | ...
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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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PDO closing connection

... According to documentation you're correct (http://php.net/manual/en/pdo.connections.php): The connection remains active for the lifetime of that PDO object. To close the connection, you need to destroy the object by ensuring that all remaining references to it are de...
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htmlentities() vs. htmlspecialchars()

... From the PHP documentation for htmlentities: This function is identical to htmlspecialchars() in all ways, except with htmlentities(), all characters which have HTML character entity equivalents are translated into these entities....
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What's wrong with using $_REQUEST[]?

...to the much more sensible GP (no C) order with the request_order config in PHP 5.3. Where this is not possible, I personally would avoid $_REQUEST and, if I needed a combined GET+POST array, create it manually. share ...
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How to loop through an associative array and get the key? [duplicate]

...do: foreach ($arr as $key => $value) { echo $key; } As described in PHP docs. share | improve this answer | follow | ...
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PHP - how to create a newline character?

In PHP I am trying to create a newline character: 15 Answers 15 ...
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Logical Operators, || or OR?

...nlike many other languages where they return the last value checked. So in PHP (27 || 0) returns true, not 27. – TextGeek Sep 15 '17 at 15:32 ...