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PHP foreach change original array values

...elds as $key => $field) { if ($field['required'] && strlen($_POST[$field['name']]) <= 0) { $fields[$key]['value'] = "Some error"; } } So basically use $field when you need the values, and $fields[$key] when you need to change the data. ...
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How to update Python?

...stalled and their versions. Some were installed by PortablePython. Use easy_install pip to install pip if it wasn't installed. If OP has 2.7.x and wants to install a different version, e.g. <=2.6.x or >=3.x.x, then installing different versions side-by-side is fine. You must choose which vers...
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Current time in microseconds in java

... On Linux, System.nanoTime() calls clock_gettime(CLOCK_MONOTONIC,_). Brian Oxley dug into Java's source code to find this nugget. – David Weber Aug 12 '14 at 13:18 ...
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Detect if device is iOS

...changed to "Mac OS", for example: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15 so this answer need to be updated – zvi Jul 7 '19 at 14:34 ...
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jQuery date formatting

...stion. It works well for me in a slightly different syntax/context: var dt_to = $.datepicker.formatDate('yy-mm-dd', new Date()); If you decide to utilize datepicker from JQuery UI, make sure you use proper references in your document's < head > section: <link rel="stylesheet" href="http...
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How can I store my users' passwords safely?

...<?php // $hash is what you would store in your database $hash = password_hash($_POST['password'], PASSWORD_DEFAULT, ['cost' => 12]); // $hash would be the $hash (above) stored in your database for this user $checked = password_verify($_POST['password'], $hash); if ($checked) { echo 'passw...
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Why can't I use the 'await' operator within the body of a lock statement?

....Tasks; public class SemaphoreLocker { private readonly SemaphoreSlim _semaphore = new SemaphoreSlim(1, 1); public async Task LockAsync(Func<Task> worker) { await _semaphore.WaitAsync(); try { await worker(); } finally {...
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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin

...URLSession sharedSession] dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { if (data) { UIImage *image = [UIImage imageWithData:data]; if (image) { dispatch_async(dispatch_...
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What is the size limit of a post request?

...rol it using .htaccess configuration file, like so: #set max post size php_value post_max_size 20M And, yes, I can personally attest to the fact that this works :) If you're using IIS, I don't have any idea how you'd set this particular value. ...
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Should IBOutlets be strong or weak under ARC?

...efault and that the developer docs are being updated. https://twitter.com/_danielhall/status/620716996326350848 https://twitter.com/_danielhall/status/620717252216623104 share | improve this ans...