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My PHP practice code is as follows: Near Download: http://files.cnblogs.com/great/MyPHPTest.rar Hello. php My first PHP program Error:[$ Error_level] $ error_message"; Echo" is about to stop the execution... "; die ();} set_error_handler ("

Switch statement If you want to selectively execute one of several code blocks, use the Switch statement. Use the Switch statement to avoid lengthy code blocks such as if... elseif... else. Syntax switch (expression){case label1: code to

This article mainly introduces the use of PDO in php to operate MySQL databases. the instance analyzes the basic operation methods such as enabling PDO and adding, deleting, modifying, and querying MySQL databases, which has some reference value,

PHP learning: Generators and generators. PHP learning -- generator Generators, -- generator generators generator overview (PHP55.5.0, PHP7) generator provides an easier way to implement simple object iteration, comparison of PHP learning-Generators

HiYesterday, 213, although there are roommates more than 3 points to sleep the objective impact, but didn't want to learn things last night is the essential reason. Get up today. Plan to 3, 4 days, learn PDO and Ajax two, but also hope that everyone

Copy CodeThe code is as follows: echo $str = "43FDF test fdsfadaf43543543 staff asked anti-theft lock anti-theft lock 5345GFDGD"; Preg_match_all ("/[0-9]{1}/", $str, $arrNum); Preg_match_all ("/[a-za-z]{1}/", $str, $arrAl); Preg_match_all

This is my recent development of a set of upload voting system, a total of 4 PHP and a number of record files, which is the first view.php, is mainly responsible for displaying the file list and uploaded file form and filename of the test. Where the

PHP updates database records. PHP updates database records update records $ queryinsertintochinachaodai (name, theindex) values (Company, 1); $ result $ mysqli-query ($ query); if ($ result) {echo (number of returned rows :. $ mysq PHP updates

This is my recent development of a set of upload voting system, a total of 4 PHP and a number of record files, which is the first view.php, is mainly responsible for displaying the file list and uploaded file form and filename of the test. Where the

Switch statementWorking principle:1. Perform a calculation on the expression (usually a variable).2. Compare the expression value with the case value in the structure.3. If a match exists, execute the code associated with the case4. After the code

1. shell script data input, condition judgment, and size comparison #! /Bin/bash # pass the first command line parameter to variable 1, the second command line parameter is passed to the variable Ba =$ 1B =2 2 # determines whether the or B variable

Test Run Environment: SLES12SP2#!/bin/bash#系统名称;os_type=$ (Uname-o | awk ' {print ' | ' +} ')#系统位数; 32/64os_bit=$ (uname-m | awk ' {print ' | ' +} ')#内核发型版本kernal_version=$ (uname-r | awk ' {print ' | ' +} ')#系统版本信息sys_info=$ (cat/etc/issue | awk ' {

Copy Code code as follows: echo $str = "43FDF test fdsfadaf43543543 staff asked Anti-Theft lock anti-theft lock 5345GFDGD"; Preg_match_all ("/[0-9]{1}/", $str, $arrNum); Preg_match_all ("/[a-za-z]{1}/", $str, $arrAl); Preg_match_all ("/([/x{4

Shell Getting Started Tutorial (1)-shell-JUSTKK's Column-Blog channel-csdn.nethttp://blog.csdn.net/justkk/article/details/43795131 Shell Getting Started Tutorial (2)-Variables and Parameters-JUSTKK-Blog

First, Introduction In shell programming, circular commands are used to control the execution of certain statements under certain conditions, with three commonly used loop statements: for, while, and until. While loops and for loops belong to the

How to execute specific code with parameters in php according to parameters, for example, I have a webpage Test. php Is there a parameter test. php? 1, test. php? 2, test. php? 3, test. php? 4, test. php? 5, Can I get the url? Parameters. To

This article mainly introduces the classes and objects in PHP: Static properties, static methods, the need for friends can refer to the following In PHP, using the keyword static modifier member properties and member methods are called static

Learning notes for PHPSwitch statements. The Switch statement in PHP is used to execute different actions based on multiple different conditions. Switch statement if you want to selectively execute one of several code blocks, use the Switch

Reading an array $arr =array ("xx" = "fork", "yy" = "crooked"); echo "reads the first:". $arr [Number of xx];//statistics array $array =array (AAA,BBB,CCC,DDD); echo "Number of arrays:". Count ($array). " n "; Computes the number of array cells or

The Switch statement in PHP is used to perform different actions based on a number of different conditions. Switch Statement If you want to selectively execute one of several blocks of code, use the Switch statement. Use the Switch statement to