function use

Fix (number) and Int (numbers) are integral parts of the returned digits. When number is positive, the two return the same value. For example: Fix (3.6) =3,int (3.6) = 3. When number is negative, Fix removes the decimal part directly, and INT

Math.ceil (x)--Returns the smallest integer greater than or equal to the numeric parameter (the integer function), rounding the number Ceil is the abbreviation of ceiling, the Chinese "upper limit" means Reference URL:

Function: Is_dir () Function: To determine whether a given file name is a directory Descriptionbool Is_dir (string $filename) Returns TRUE if the filename exists and is a directory.If filename is a relative path, check its relative path according

Decimal Example: PHP retains two decimal places and rounded up Copy Code code as follows: $n = 0.1265489; Echo sprintf ("%.2f", $n); 0.13 You can see we used the sprintf function to format the $n%.2f is the target format,

Copy Code code as follows: Fix 404 Pages: Header (' http/1.1 OK '); Set 404 Header: Header (' http/1.1 404 Not Found '); Set moved Permanently header (Good for redrictions) Use with location header Header (' http/1.1 moved Permanently ');

C + + get () function reads a characterThe Get () function is a member function of a CIN input stream object, which has 3 forms: No parameters, one parameter, and 3 parameters.1 Get function without parametersIts invocation is in the form of

have been using PHP to use Redis, but always feel insecure, simply borrow this time free coherent, PHP all the operations to the Redis command, almost all the time, including its return value is to stare right, even if the next forget can also

Use of RegExp objects: Regexptest (PATRN, STRNG) Dim regEx, Match, matches ' Set variable. Set regEx = New RegExp ' establishes a regular expression. Regex.pattern = Patrn ' Set mode. Regex.ignorecase = True ' Sets whether character case is

Today when the test found the problem, when the database in the month of 09 when the problem, with the parseint conversion after the 0. So puzzled. Measured for a long time, did not find the problem in my code, to Google search a bit, just know it

When we delete files or software on our computer, we sometimes hint that the software is occupied and cannot be deleted. Delete folder but you cannot delete folder after deletion: What if the file is being used by another person or program? Then the

--translation function If you are engaged in a job that requires frequent translation between English and Chinese, you can use the translation function of the life calendar to translate at any time. The translation function of life calendar

First, landing mobile phone QQ, into the main interface, switch to "dynamic"---Click "Friend Dynamic" as shown in the picture. Second, then in the friend dynamic interface click "Personalized" as shown in the picture. Third, next slide down to

Use your account to login to Baidu Cloud Butler shown. Then in the Baidu Cloud Butler main interface above the window you will see a "hidden space", as shown in the following figure. After clicking, Baidu Cloud Butler asks to open the

Definitions and usage The STRTR () function converts a specific character in a string. Grammar STRTR (string,from,to) or STRTR (string,array) parameter description String1 required. Specify the string to convert. From required (unless an array is

The syntax for a function is: Function Definition Method Copy Code code as follows: Function "Function_name" (Arg1, arg2 ...) { [Code to execute] return [Final_result]; } where [Final_result] usually returns the value

1. Direct compression: Select the compressed file you want, and then right-click to select Send to--> Compressed (ZIPPDE) folder. 2, the indirect compression method: In the Desktop or File window blank place right mouse click, select "New-->

First look at the syntax of the Find_in_set function in the MySQL manual: The code is as follows Copy Code Find_in_set (Str,strlist) If string str is in the strlist of a string list of n chains, the return

One, the lock screen interface In the main screen of the mobile phone we can simply slide down to unlock, use up, left, right slide we are able to quickly enter the camera, phone, SMS related interface. Second, there are calls If there's a

1, first download experience assistant, after installation to open it. 2. Click the "Remuneration calculation" option in the main interface and add the royalties to the list of remuneration that appears. Click the "Add" button to add the

1, as shown in the following figure we enter the 3S system main interface and then click "Settings" in the Entry Settings list click "Safe" option, open the entry effect as follows 2, after entering the mobile phone's safe list interface, we