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Fastest way to check if a string is JSON in PHP?

... OK return $result; } Testing with Valid JSON INPUT $json = '[{"user_id":13,"username":"stack"},{"user_id":14,"username":"over"}]'; $output = json_validate($json); print_r($output); Valid OUTPUT Array ( [0] => stdClass Object ( [user_id] => 13 ...
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Disable orange outline highlight on focus

... Remove the orange box on input focus for Androids textarea:focus, input:focus{ -webkit-tap-highlight-color: rgba(255, 255, 255, 0); -webkit-user-modify: read-write-plaintext-only; } tap-highlight-color for most versions ...
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In SQL, how can you “group by” in ranges?

... as [score range], count(*) as [number of occurrences] from ( select user_id, case when score >= 0 and score< 10 then '0-9' when score >= 10 and score< 20 then '10-19' else '20-99' end as range from scores) t group by t.range ...
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Replace string within file contents

... can I open a file, Stud.txt, and then replace any occurences of "A" with "Orange"? 8 Answers ...
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Relational table naming convention [closed]

...ll the time, and you want keys to stand out from data columns. Always use user_id, never id. Note that this is not a table name used as a prefix, but a proper descriptive name for the component of the key: user_id is the column that identifies an user, not the id of the user table. (Except of...
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Rails params explained?

...user's browser requested http://www.example.com/?vote[item_id]=1&vote[user_id]=2 then params[:vote] would be a hash, params[:vote][:item_id] would be "1" and params[:vote][:user_id] would be "2". The Ruby on Rails params are the equivalent of the $_REQUEST array in PHP. ...
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Check if an array contains any element of another array in JavaScript

I have a target array ["apple","banana","orange"] , and I want to check if other arrays contain any one of the target array elements. ...
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Getters \ setters for dummies

...You don't ask Bob Ross why he had to use burnt ochre when he could've used orange. You may not see a need now, but one day when you decide your painting needs a little burnt ochre, it'll be on your palette. – rojo Nov 30 '16 at 11:33 ...
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MySQL COUNT DISTINCT

... Select Count(Distinct user_id) As countUsers , Count(site_id) As countVisits , site_id As site From cp_visits Where ts >= DATE_SUB(NOW(), INTERVAL 1 DAY) Group By site_id ...
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What is the difference between save and insert in Mongo DB?

...ed as there is no apple with the same Object Id to do an update Insert an Orange db.fruit.insert({"name":"orange", "color":"orange","shape":"round"}) WriteResult({ "nInserted" : 1 }) Orange is inserted db.fruit.find(); { "_id" : ObjectId("53fa1809132c1f084b005cd0"), "color" : "real re...