Php Get Length Of String

php string function is essential, give us a lot of convenience to solve practical problems, such as the use of PHP string function string segmentation, interception, matching, replacement and other treatment. PHP string function is essential for PHP entry learners, so we will mainly introduce PHP string segmentation function processing experience, open the PHP string function Getting Started tutorial tour. Commonly used PHP string segmentation function Commonly used PHP segmentation string functions are explode, strtok, str_split, mainly for demolition ...

AddSlashes: String added to the slash. bin2hex: binary into hexadecimal. Chop: Remove continuous blanks. Chr: returns the ordinal value of the character. chunk_split: The string is divided into small pieces. convert_cyr_string: Converts the ancient Slavonic string into another string. crypt: Encrypt the string with DES encoding. echo: output string. explode: cut the string. flush: clear the output buffer. ...

In this lesson, we want to learn how to increase the intelligent processing capacity of the Web page. Basic functions Welcome to the third and final lesson of this tutorial. If you've learned the first and second lessons, you've mastered the basics of installing and programming MySQL and PHP. Here are some of the other functions of PHP that might be useful to you and make your development process simpler. 　　First, let's look at the document. You should know some basic concepts of the header file, right? The header file is an external file whose contents are included in the main program. ...

substr (PHP3, PHP4) substr---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Get partial string Syntax: String substr (string string, int start [, int length]) Description: substr () returns one of the string ...

It would be faster to enclose the string in single quotes instead of double quotes. Because PHP searches for variables in double-quoted strings, single quotes do not. Note that only echo can do this: it's a "function" that takes multiple strings as arguments, Echo is a language structure, not a real function, so the function with double quotes). 1, if you can define the class method as static, as far as the definition of static, it will speed up nearly 4 times. 2, $ row ['id'] speed ...

Use PHP to develop applications, especially web applications, often need to generate a random password, such as user registration to generate a random password, the user also need to reset the password to generate a random password. Random password is a string of fixed-length string, where I collected several ways to generate a random string for your reference. Method 1: 1, in 33 - 126 to generate a random integer, such as 35, 2, 35 will be converted to the corresponding ASCII characters, such as 35 corresponding to # 3, repeat the above 1, 2 steps n times, connected ...

PHP tutorial fsockopen function send Post,get request to get Web content (anti-collection) $post = 1; $url = Parse_url ($url); $host = ' http://www.jzread.com '; $path = '/'; $query = ' action=jzread.com ';   $port = 80; if ($post) {$out = &qu ...

Unix installed under the PHP module, need to recompile PHP, Windows installation template, just the php.ini configuration can be opened in the corresponding dll, for example, need to join the gb library support, you need the following settings: extension_dir = "C : / ipaddr / php / extensions / "(Note that it is recommended to write the full address, followed by the /, often because of the wrong settings here, it can not load other modules dll) and then open ...

PHP Tutorial Gets the relative Path instance code function Getrelativepath ($a, $b) {$returnPath = Array (dirname ($b));    $arrA = explode ('/', $a); &n ...

Recently in the preparation of a library management program, you need to verify the correctness of the ISBN code of the book, check some information to understand the composition of the ISBN code of the book, the details can refer to: ISBN - Wikipedia, the following is a brief description of what ISBN code: International Standard Book Number (ISBN; is-ben), is an internationally accepted or independent publication (except for regularly published journals). Publishers can be clear by ISBN ...