PHP Tutorials

absrtact: Since the implementation of microservices, we have encountered a lot of problems. One of the biggest problems is how to troubleshoot, the service interface will often rely on multiple services, the slow dependence of the interface will

Operators and expressions are the most basic knowledge of PHP learning, this article through an example to explain the operators and expressions in PHP some of the application and skills, as well as the need to pay attention to the place, the need

This article mainly introduces the implementation of the PHP implementation of external programs, combined with examples of PHP to perform external programs commonly used functions related to the use of skills and considerations, the need for

The SMTP (Simple Mail Transfer Protocol) is simply the message Transfer Protocol, which is a set of rules for sending mail from the source address to the destination, and it controls the way the letters are relayed. The SMTP protocol is a TCP/IP

The Fgetcsv () function reads a row from the file pointer and resolves the CSV field. Similar to Fgets (), the difference is that fgetcsv () parses a read-in row and finds a field in CSV format, and then returns an array containing those

This article mainly introduces PHP in rename () function usage, more detailed analysis of the rename () function in the meaning of the parameters and the specific use of the method, with a certain reference value, the need for friends can refer to

This article mainly introduces the PHP date manipulation skills, involving the PHP date and time display format conversion skills, with a certain reference value, the need for friends can refer to the next This article summarizes the PHP date

Implementation of the interface The So, after the definition of this pass, By instantiating an object $peroson 1=new Human (); $person 1->eat (' Apple '); The result of the output is Human eating apple The eat (' Apple ');//We can determine

in PHP, arrays are divided into two categories: numbersIndex arrays and associative arrays. Where the numeric index array is the same as the array in the C language, the subscript is for 0,1,2 ...Associative array subscripts may be of any type,

OB, output buffer, is the abbreviation for the output buffering, not the output cache. OB is used to be able to help speed, but blind plus OB function, will only increase the CPU extra burden The basic principle of OB: If the OB cache is open, then

PHP gets the start timestamp and end timestamp of today, yesterday, last week, this month, mainly using PHP's time function mktime. Let's start with a straight-through example to illustrate how to use Mktime to get the start timestamp and end

What is the function of PHP string function Stripos ()? The String function Stripos () is the first occurrence of a string in another string, and the function is case-insensitive. It is convenient to use, and its associated function has Strripos

What is a. phpexcel? Phpexcel is a PHP class library for working with Office Excel documents, based on the Microsoft OPENXML Standard and PHP language. You can use it to read and write spreadsheets in different formats, such as Excel (BIFF). xls,

PHP saves XML files $xml=new simplexmlelement (XML data); $xml->asxml (file name); PHP read XML file xxx= simplexml_load_file (file name); 1. Accessing XML using object-oriented methods 1. PHP simplexmlelement:xml file parsing and reading and

Determines whether the directory is empty, true is null, false is not empty function Is_empty_dir ($fp) {$H = @ opendir ($fp), $i =0, while ($_file=readdir ($H)) {$i + +;} Closedir ($H); if ($i >2) {return false;} Else{return true;}} 1. Determine if

Windows apiwindows This multi-job system in addition to coordinating application execution, allocating memory, managing resources ... , it is also a large service center, invoking the service center of the various services (each service is a

This article collects 10 article 1 about the PHP atan () function. PHP Math function Large Summary classic worth of HTML call PHP function Excel function Two brief introduction: PHP, Function: PHP math function Summary Classic is worth collecting:

Shuffle () defines and uses the shuffle () function to rearrange the elements in the array in random order. Returns TRUE if successful, otherwise FALSE is returned. Note: This function assigns the new key name to the cells in the array. This will

The following text: This article mainly introduces the PHP file read and write operation related function Summary, this article summarizes fwrite (), Fread (), fgets (), fgetc (), file (), ReadFile () and other functions of the introduction and use

The sprintf in PHP differs from the printf function usage, sprintfprintf below is an example: rounding retains two digits after the decimal point explanation under the meaning of%0.2f:% means the starting character 0 means that the vacancy with 0