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PHP to determine whether the input is a purely numeric, English, Chinese method This article mainly introduces the PHP to determine whether the input is pure digital, English, Chinese characters, involving PHP mb_strlen and strlen functions such as

Php determines whether the input is a pure number, English or Chinese character ,. Php determines whether the input is a pure number, English, or Chinese character. This document describes how php judges whether the input is a pure number, English,

I saw it a long time ago. I think it's good. I think it's okay today. I found it and backed it up. Int x = 35;Char STR [10]; // Q: What are the values of strlen (STR) and sizeof (STR?// The strlen (STR) value is unknown. strlen determines whether

[Interview Questions] What is the difference between sizeof and strlen? sizeofstrlen Example: constchar * p = "Hello World"; char p [] = "Hello World"; what is the difference between length and occupied space? A: You can use strlen (p) to determine

1. Solving [CPP] View plaincopyprint? char str[100] = "Hello World";sizeof(str) = ?;srlen(str) = ?char str1[100] = "Hello\0World";strlen(str1) = ?   Test site: Sizeof function and strlen function. The sizeof function is used to calculate the memory

The difference between strlen and Mb_strlen, Strlenmb_strlen The usual functions for calculating string lengths in PHP are: strlen and Mb_strlen. When the word embox is an English character, the two are the same. Here the main comparison, the

Use ASCII code. The code is as follows:Copy code $ Str = "abcdefg People's Liberation Army of the People's Republic of China, Communist Party of China, Chinese people ";$ Num = strlen ($ str); // $ num string length.Echo $ num. " ";For ($ I = 0;

Echo Ccstrlen ($str), ' '; Echo Ccstrleft ($STR, 3); function Ccstrleft ($str, $len) # Intercept from the left in English mixed string { $ascLen =strlen ($STR);   if ($ascLen $hasCC =ereg ("[ XA1-XFE] ", $STR); #同上 $hasAsc =ereg ("[x01-xa0]", $

This article mainly introduces whether the PHP input is a pure digital, English, Chinese character method, involving PHP mb_strlen and strlen functions such as the use of skills, with a certain reference value, the need for friends can refer to the -

function Ccstrlen ($STR) #计算中英文混合字符串的长度{$ccLen = 0;$ascLen =strlen ($STR);$ind = 0;$hasCC =ereg ("[Xa1-xfe]", $STR); #判断是否有汉字$HASASC =ereg ("[x01-xa0]", $STR); #判断是否有ASCII字符if ($hasCC &&! $hasAsc) #只有汉字的情况return strlen ($STR)/2;if (! $hasCC &&

String Intercept function A The code is as follows Copy Code function MyStr ($str, $str _len) {//Cut a certain length of string (string, cut length)if (strlen ($str) return $str;}else return Mysubstr ($str, 0, $str _len).

Sometimes, to be safe, we need to escape the strings entered by the user. There is an incorrect or ambiguous place in the article, please point out the problem ~ ~ ~The configuration and functions associated with the PHP string escape are as follows:

PHP Code:-------------------------------------------------------------------------------- function Ccstrlen ($STR) #计算中英文混合字符串的长度 { $ccLen = 0; $ascLen =strlen ($STR); $ind = 0; $hasCC =ereg ("[Xa1-xfe]", $STR); #判断是否有汉字 $HASASC =ereg ("[x01-xa0]", $

Why is the MD5 encryption in Java and PHP different? Php code: echo md5(chr(142)); Java code: Import java. math. bigInteger; import java. security. messageDigest; import java. security. noSuchAlgorithmException; public class utils {public

Today, I encountered a special character processing problem. I noticed this problem again in PHP: * A PHP string with single quotes as the separator. Two escape characters/'and // are supported //* A PHP string with double quotation marks as the

The strlen (char *) function is used to calculate the actual length of the string. The method is from the beginning to the First '\ 0'. If you only define that the initial value is not assigned to it, the result is not correct. It will be searched

Article Which is incorrect or ambiguous ~~~ Configurations and functions related to PhP string escaping are as follows:1. magic_quotes_runtime2. magic_quotes_gpc3. addslashes () and stripslashes ()4. mysql_escape_string ()5. addcslashes () and

# Include "stdio. H"# Include "string. H" Void main (){ Char AA [10];Printf ("% d", strlen (AA ));Printf ("% d", sizeof (AA ));} The result of running the program is strlen (AA) = 15. sizeof (AA) = 10. What is the problem? Strlen is the length of a

This article mainly introduces the PHP custom encryption method, has a certain reference value, now share to everyone, the need for friends can refer to Simple coding function (corresponding to the Php_decode function) function Php_encode ($str) {

PHP character escape Function Summary. sometimes, for the sake of security, we need to escape the character strings entered by the user, which may be incorrect or obscure ~~~ Configurations and functions related to PHP string escaping are as