strlen function

Using the features of the programming language can not only simplify the program, but also improve the execution efficiency of the program. First, let's look at an example program that uses sizeof () to improve program efficiency. Figure 1 shows the

[Size=5] [Color=red] 40 Suggestions for optimizing PHP code [/color][/size]Tips for optimizing your PHP CodeOriginal address: Http://reinholdweber.com/?p=3The English copyright belongs to Reinhold Weber, the author of Yangyang (aka Davidkoree). The

Difference between Strlen () and Sizeof (); Difference between strlensizeof The strlen () function is used to calculate the actual length of a string. It is obtained from the beginning to the First '\ 0'. If you only define that it is not assigned

Recently in the string-preserving compression encoding, due to temporarily find no suitable way, in the most stupid way, the string is sorted and then compressed encoding. Because of the large number of strings, one-time all in memory there will be

2015.2.2#include #include Functions for character manipulationint isalnum (int);int isalpha (int);int isdigit (int);int isgraph (int);int islower (int);int ispunct (int);int isspace (int);//Determines whether it is a spaceint isupper (int);int

Program --- C language details 17 (calculate the maximum value of time_t, strlen calculates the length, malloc allocates characters memory details, and switch's default details) Main Content: calculate the maximum value of time_t, strlen evaluate

Details easily overlooked in C Language (part 3) Preface:The purpose of this article is to record the details that are easy to ignore in the C language. I plan to take some time every day to read books and stick to it. Today is the first article,

In PHP development, to become a programmer, you must learn to make PHP programs run faster. Use single quotes instead of double quotes to include strings, which is faster. Because PHP will search for variables in strings enclosed by double quotes,

This article mainly introduces the basic knowledge of php learning notes. For more information, see This article mainly introduces the basic knowledge of php learning notes. For more information, see I have been studying php for more than a

1. If a method is static, make a static declaration of it. The rate can be increased to 4 times times. 2.echo is faster than print. 3. Use Echo's multiple parameters (meaning: a comma instead of a period) instead of a string connection. 4.

Using single quotes instead of double quotation marks to contain strings can be faster. Because PHP will search for variables in a string surrounded by double quotes, single quotes will not, note: only echo can do this, it is a string can be used as

Transferred from: http://www.tsingpost.com/articles/201401/347.html1. Try to be static:If a method can be static, it is declared static, the speed can be increased by 1/4, even when I test, this improved by nearly three times times.Of course, this

1.VC9 is specifically designed for IIS, and VC6 is provided for other Web services software, such as Apache.Php.ini-developmen and Php.ini-production appear in the new version of 2.PHP5These files have a new name:Php.ini-production corresponds to

Strlen () function to get the length of character channelingRead files: fgets (), FGETSS () and Fgetcsv ()Read the entire file: ReadFile (), Fpassthru (), and file ()Read one character: Fgetc ()The only disadvantage of using the fgetc () function is

1. If the class method can be defined as static, it should be defined as static as much as possible, and its speed will be increased by nearly four times.2. $ row ['id'] is 7 times faster than $ row [id.3. echo is faster than print, and multiple

The purpose of PHP optimization is to spend the least amount of time on the fastest running speed and the easiest to maintain code. This article gives you a comprehensive optimization technique.1. Echo is faster than print.2. Use Echo's multiple

Php development tool ZendStudio-7.2.0MySQLServer5.0, MySql auxiliary tool Navicat8LiteforMySQL today () began to study the PhpPHP Syntax :? Php? Htmlbody? PhpechoHelloWorld ;? Every line of code in bodyhtmlPHP must end with a semicolon. A semicolon

The stdClass class is an internal reserved class of PHP. It has no member variables or member methods at the beginning, and all magic methods are set to NULL. You can use it to pass variable parameters, however, there are no methods that can be

C + + does not provide a function to get the length of the array directly, for the character array that holds the string provides a strlen function to get the length, then how to get their length for other types of arrays? One way to do this is to

[Cpp]# Include # Include  Int main (){Char arr [1000];Int I;For (I = 0; I {Arr [I] =-1-i;}Printf ("% d \ n", strlen (arr )); Return 0;} What are the answers to this question? There must be different answers. The correct answer should be 255. 255?