This the array...  $rt = array(     '0' =&gt; array(     'nombre'=&gt;'Jojo',     'fecah'=&gt; '195',     'fch'=&gt;'12'     ),     '1' =&gt; array(         'nombre'=&gt;'Tito',         'fecah'=&gt; '197',         'fch'=&gt;'13'     ),     '2' =&gt; array(         'nombre'=&gt;'Jojo',         'fecah'=&gt; '195',         'fch'=&gt;'12'     ),     '3' =&gt; array(         'nombre'=&gt;'Joji',         'fecah'=&gt; '195',         'fch'=&gt;'12'     ), );   and this is my code:  $a = array(); foreach ($rt as $k=&gt;$v) {     if (in_array($v['nombre'], $a) &amp;&amp; in_array($v['fecah'], $a) &amp;&amp; in_array($v['fch'], $a) ) {         $a[]=$k;         echo 'The name ' . $v['nombre'] .' is in the array&lt;br&gt;';     } else {         echo 'The name is not in the array &lt;br&gt;';     } }   so as you can see  in the array index [2] the information also exist in the index [0], so I don't need it again, so I need a away to see if the data get repeated or not... if the data is "unique" then build the new array with the "unique" data if the data already exist then jump to next, but I need to compare the 3 keys not just the name... so how do I do that?
How can I remove duplicate values from a multi-dimensional array in PHP?  Example array:  Array (     [0] =&gt; Array     (         [0] =&gt; abc         [1] =&gt; def     )      [1] =&gt; Array     (         [0] =&gt; ghi         [1] =&gt; jkl     )      [2] =&gt; Array     (         [0] =&gt; mno         [1] =&gt; pql     )      [3] =&gt; Array     (         [0] =&gt; abc         [1] =&gt; def     )      [4] =&gt; Array     (         [0] =&gt; ghi         [1] =&gt; jkl     )      [5] =&gt; Array     (         [0] =&gt; mno         [1] =&gt; pql     )  )
I need to view the saved WiFi passwords on my non-rooted Android phone I have an LG Optimus 7 (not-rooted), and all my WiFi passwords are there. I want to view the saved WiFi passwords to transfer thm to my new Samsung Galaxy S3, but I don't know how.  I tried to search on the Internet and Google play for an application that would allow me to view this information, but I can't find one. Is there any way for me to accomplish this? Invalid selectOptions found. Use SelectOption type in Apex What is the minimum RAM required for Pokemon GO? While poking around on Pokemon Go's , it lists some specs required for Android and iOS devices. I'm particularly interested in Android devices, but I do not see a minimum/recommended RAM listed on their site.        Android 4.4 to Android 6.0.1  (Android N will not supported until the   official Android release)    Preferred resolution of 720x1280 pixels   (Not optimized for tablet)    Strong internet connection (Wi-Fi, 3G, or   4G)    GPS and Location Services    Intel CPUs are not supported      My device is a , which has a 1.5GB RAM and Quad-Core processor. It runs fine for the most part, but a majority of the features heavily lags and are sluggish while I've seen the same features run smooth on other devices.  What is the minimum/recommended RAM for Pokemon Go to run more smoothly? The SQL Server instance is accessible and seems to be fine.     Microsoft SQL Server 2016 (SP1-CU2) (KB4013106) - 13.0.4422.0 (X64)   Mar  6 2017 14:18:16   Copyright (c) Microsoft Corporation  Enterprise   Edition (64-bit) on Windows Server 2012 R2 Standard 6.3  (Build   9600: ) (Hypervisor)   But what does the white question mark mean?  these icons dont go away when I refresh. I am sysadmin inside sql server and outside I am administrator on that box.      Another thing I noticed, you can see on the picture below. These are 2 different Management Studio sessions.  On the top one, I am logged in as myself, DBA and sysadmin,  on the second one I use Management Studio with run as a different user and I use a domain account that I use for the replication, which is not sysadmin.  The second one has the blue icon in this and other servers as well, whilst mine is the normal green one. Can I upload an entire folder using FTP? I need to upload a full folder using FTP.  Is there is any option for transferring a folder and all of its contents at once? List of freely available physics books I'm trying to amass a list of physics books with open-source licenses, like Creative Commons, GPL, etc. The books can be about a particular field in physics or about physics  in general.  What are some freely available great physics books on the Internet? edit: I'm aware that there are tons of freely available lecture notes online. Still, it'd be nice to be able to know the best available free resources around.  As a starter:         Table of contents sorted by field (in alphabetical order): Show that $\phi(n)=\frac{n}{2}$ if and only if $n=2^k$ for some positive integer k. I think I have it figured and would like to see if I am on the right track. Thank you. Story featuring smart people sent on a space mission to nowhere The story in question featured, as the vague title suggests, a "space mission" that is really a cover for forcing a bunch of really smart people to be in close proximity to each other for long enough that they can truly evolve their collective intelligence. I recall them developing new maths and, e..g, "farseeing" and eventually figuring out that while there was no planet at the end of their journey as they were told, they were able to construct one for themselves. Is there a word for a person who avoids their responsibilities? Is it possible to serialize and deserialize a class in C++? I have a project, and it has an object that has always rendered correctly, but one day when I open the project and make a test render, the object has disappeared. All the settings are normal, the object, and all of its children render display in the object outliner set to true. I really don't know what happened to it. Can someone tell me what I should look through to diagnose it? Sorry I cannot provide much detail. What I've explained is all I know. Edit: I am uploading the .blend file at  This is a Minecraft scene. It is the wolf that doesn't render. At one point it did, but now it just won't. The wolf has particle properties. I don't know if that matters, but it could. Look through all the wolf's properties to try and figure it out. JavaScript displaying a float to 2 decimal places Consider the functional equation problem $$ f : \mathbb R \to \mathbb R \text , $$ $$ f \left( a ^ b \right) = f ( a) ^ { f ( b ) } \text , $$ when $ a , b \in \mathbb R $, $ a , b \ge 0 $. So far the only solution I have is the trivial $$ f ( x ) = x \text . $$ Does there exist any other possible solution? Even if the $ f $ doesn't have a closed form in terms of elementary functions, is there some way I could derive a series or an alternative expression for it? I tried to get a little more creative: $$ f ( w ) = f \left( w ^ { \frac 1 w } \right) ^ { f ( w ) } \text , $$ which nests deep into $$ f ( w ) = f \left( w ^ { \frac 1 w } \right) ^ { f \left( w ^ { \frac 1 w } \right) ^ { f \left( w ^ { \frac 1 w } \right) ^ \vdots } } \text , $$ which is equivalent to $$ \ln \big( f ( w ) \big) = \ln \bigg( f \left( w ^ { \frac 1 w } \right) \bigg) f ( w ) \text . $$ I was hoping to generate some sort of series using this. I have a log file being written by another process which I want to watch for changes. Each time a change occurs I'd like to read the new data in to do some processing on it.  What's the best way to do this? I was hoping there'd be some sort of hook from the PyWin32 library. I've found the win32file.FindNextChangeNotification function but have no idea how to ask it to watch a specific file.  If anyone's done anything like this I'd be really grateful to hear how...  [Edit] I should have mentioned that I was after a solution that doesn't require polling.  [Edit] Curses! It seems this doesn't work over a mapped network drive. I'm guessing windows doesn't 'hear' any updates to the file the way it does on a local disk. Flag indicator present on Meta, but no flags visible Summation of series $\sum_{n=1}^\infty \frac{n^a}{b^n}$? Intersection Number of $B = Y^2 - X^3 + X$ and $F = (X^2 + Y^2)^3 - 4X^2Y^2$ using the fact $I(P,F \cap B) = ord_P^B(F) $. I was using Windows XP, I like Ubuntu, but I'm wondering,because as  I'm a professional photographer &amp; photo editor.  I do my work with Photoshop, so will photoshop work in ubuntu? Why don't I have the right to create a text file in my root directory? Suppose $f$ is a continuous, strictly increasing function defined on a closed interval $[a,b]$ such that $f^{-1}$ is the inverse function of $f$. Prove that,   $$\int_{a}^bf(x)dx+\int_{f(a)}^{f(b)}f^{-1}(x)dx=bf(b)-af(a)$$   A high school student or a Calculus first year student will simply, possibly, apply change of variable technique, then integration by parts and he/she will arrive at the answer without giving much thought into the process. A smarter student would probably compare the integrals with areas and conclude that the equality is immediate.  However, I am an undergrad student of Analysis and I would want to solve the problem "carefully". That is, I wouldn't want to forget my definitions, and the conditions of each technique. For example, while applying change of variables technique, I cannot apply it blindly; I must be prudent enough to realize that the criterion to apply it includes continuous differentiability of a function. Simply with $f$ continuous, I cannot apply change of variables technique.  Is there any method to solve this problem rigorously? One may apply the techniques of integration (by parts, change of variables, etc.) only after proper justification.  The reason I am not adding any work of mine is simply that I could not proceed even one line since I am not given $f$ is differentiable. However, this seems to hold for non-differentiable functions also.  I would really want some help. Pictorial proofs and/or area arguments are invalid.