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GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
...势检测原理
性能优化建议
常见问题
Q: 手势检测不灵敏怎么办？
Q: 如何在同一个组件上检测多种手势？
Q: 可以自定义手势的灵敏度吗？
Q: 支持哪些布局组件？
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Want to exclude file from “git diff”
I am trying to exclude a file ( db/irrelevant.php ) from a Git diff. I have tried putting a file in the db subdirectory called .gitattributes with the line irrelevant.php -diff
and I have also tried creating a file called .git/info/attributes containing db/irrelevant.php .
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PHP Sort a multidimensional array by element containing date
...compare")), so that usort() knows it's a class function/method. See also: php.net/manual/en/…
– Ferdinand Beyer
May 26 '10 at 16:26
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'AND' vs '&&' as operator
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+1: this should be made loud and clear in PHP documentation, or PHP should change and give same precedence to these operators or DEPRECATE and or once for all. I saw too many people thinking they are exactly the same thing and the answers here are more testimonials.
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How to get last key in an array?
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PHP's built-in functions were built by extreme nerds. Do not try to recreate those functions. The odds are that you make something far slower than the original. Unless you are some sort of evil wizard, of couse.
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How to use a switch case 'or' in PHP
Is there a way of using an 'OR' operator or equivalent in a PHP switch?
10 Answers
10
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PHP - add item to beginning of associative array [duplicate]
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@Timo Huovinen, array_merge didn't work because PHP converted your key to a number, and array_merge resets numeric keys.
– meustrus
Jan 24 '14 at 18:16
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Array copy values to keys in PHP [duplicate]
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$final_array = array_combine($a, $a);
http://php.net/array-combine
P.S.
* Be careful with similar values. For example:
array('one','two','one') may be problematic if converted like duplicate keys:
array('one'=>..,'two'=>..,'one'=>...)
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php create object without class [duplicate]
... ["property"]=>
string(10) "Here we go"
}
*/
Also as of PHP 5.4 you can get same output with:
$object = (object) ['property' => 'Here we go'];
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Get data from JSON file with PHP [duplicate]
I'm trying to get data from the following JSON file using PHP. I specifically want "temperatureMin" and "temperatureMax".
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