Get the first element of the array

I have an array: array( 4 => 'apple', 7 => 'orange', 13 => 'plum' ) I want to get the first element of this array. apple expected results: apple One requirement: it cannot be done by reference passing, so array "shift" is not a good solution. How can I do that? #1 building Use: $first = array_slice($array ...

Posted on Fri, 13 Dec 2019 06:35:55 -0800 by altaergo

[Zhiyin] NYOJ translation of Title 490

Title: Translation Title Link: http://acm.nyist.net/judgeoonline/problem.php? PID = 490 Content: Problem solving analysis: It seems that the input and output format of this question is not very clear,1) all data may be input, and then output (solution 1, memory may not be enough, high universality of the topic (AC pass))2) it is also po ...

Posted on Tue, 10 Dec 2019 11:25:42 -0800 by mdgalib

Laravel 5.5 source notes (3. facade)

Last time I said provider, this time I said facade The first is the source of startup. From the $bootstrappers array in the kernel class of laravel, we can see some of its system boot methods. The registerfacies is used to register the facade class. protected $bootstrappers = [ \Illuminate\Foundation\Bootstrap\LoadEnvironmentVariab ...

Posted on Tue, 10 Dec 2019 10:40:46 -0800 by jonoc33

Apache multi virtual host multi version PHP (5.2 + 5.3 + 5.4) Co running configuration

1. Download the corresponding mod_fcgid-2.3.9-win64-VC14.zip according to the apache version https://www.apachelounge.com/download/ Extract fcgid, and take its mod_fcgid.so to the modules directory. Each version of PHP is decompressed to different directories and configured. It is convenient to use any location. 2. Open httpd.conf to comment ...

Posted on Mon, 09 Dec 2019 19:18:23 -0800 by Balu

curl impersonates http requests

brief introduction curl is a command line tool for transferring data with URL syntax. PHP supports libcurl library created by Daniel Stenberg, which can connect to various servers and use various protocols. Currently, libcurl supports http, HTTPS, ftp, gopher, telnet, dict, file and ldap. Libcurl also supports HTTPS certificate, HTTP POST, HTTP ...

Posted on Mon, 09 Dec 2019 15:20:19 -0800 by boushley

Android/Java compress / decompress / encrypt file / zip

background In the process of redevelopment, no matter Android client or desktop program, it may involve file upload and download. In case of multiple files, zip compression is usually used to compress multiple files into a zip package, which is convenient for transmission. In addition, download of some resources may also be in ...

Posted on Mon, 09 Dec 2019 13:10:01 -0800 by misty

PHP Reflection resolving multiple dependencies

Multiple dependence Multiple dependency: it is not a "dead cycle" dependency, but it needs multiple parsing when parsing.For example: C depends on B - , B depends on A - , A depends on Several methods ReflectionParameter::getClass(): gets the parameter class and the returned ReflectionClass object.ReflectionParameter::getName(): get ...

Posted on Mon, 09 Dec 2019 03:03:16 -0800 by drock

Centos7 compiles, installs and builds LAMP platform

I. compile and install mysql Install dependency packages and tools # yum install -y gcc gcc-c++ ncurses-devel perl # yum install -y cmake Download mysql installation package # wget http://mirrors.sohu.com/mysql/MySQL-5.5/mysql-5.5.62.tar.gz Preparation before installation # groupadd mysql # useradd -g mysql mysql # mkdir -p /data/mysql # ...

Posted on Sun, 08 Dec 2019 05:38:06 -0800 by Obadiah

PHP Implementation of Domain-Driven Design - Architectural Style

Architecture Style For building complex applications, a key point is to have an architecture design that fits the application needs.One advantage of domain-driven design is that it does not have to be tied to any particular architectural style.Instead, we are free to choose the best architecture based on the context of boundaries within each co ...

Posted on Fri, 06 Dec 2019 13:07:43 -0800 by zarp

Python calls the zabbix api

Prerequisite preparation: 1. Use python requests module 2. Learn about json 3. The specific call of ZABBIX API is recommended to browse the official website first First code: import requests,json # #The url must be correct. Change the IP address to the one of your own zabbix server zbx_url = "http://192.168.60.130:3080/zabbix/api_jsonrpc.php" ...

Posted on Fri, 06 Dec 2019 05:22:43 -0800 by harvey