[PHP] Utility function 4_php Tutorial

Source: Internet
Author: User
Output the information page about PHP and current instructions

int phpinfo (void)
Returns the current PHP version number

String phpversion (void)
Print out a list of people who contributed to this PHP project

String phpcredits (void)
You can turn Var into an integer type. Base is the base of the conversion, the default value is 10. The variable var can be converted to an array or a class other than
Any type of variable

int intval (mixed var,int[base])
Get the double value of a variable

Double Doubleval (mixed Var)
Get the string value of a variable

String Strval (mixed var)
Returns the type of the variable

String GetType (mixed Var)
Sets the type of the variable. Returns true if the conversion succeeds

int Settype (string var,string type)
To sort the elements of an array

void sort (array array)
Reverse order of array elements

void Rsort (array array)
Apply a user function to each element of an array

int Array_walk (Array array,string func)
Counts the number of elements in an array

int count (mixed var)
Makes an internal pointer to the array parameter point to the last element and returns the element

Mixed end (array array)
Makes an internal pointer to the array parameter point to the previous element and returns the element

Mixed prev (array array)
Makes an internal pointer to the array parameter point to the next element and returns the element

Mixed next (array array)
Makes an internal pointer to the array parameter point to the 1th element and returns the element

Mixed reset (array array)
Returns the element pointed to by the pointer inside the current array

Mixed current (array array)
To see if there are needle given this value in the haystack array, strict means a strict match (default value)

BOOL In_array (mixed Needle,array Haystack,[,bool Strict])
Returns the index value of the next element in the array

Array each (array array)
Add elements to the end of the array

int Array_push (array stack,mixed var[,mixed ...])
POPs an element from the end of an array

Mixed Array_pop (array stack)
POPs an element from the beginning of the array

Mixed Array_shift (array stack)
Return the element to the beginning of the array

Mixed Array_unshift (array stack)
Returns the current UNIX format timestamp

int time (void)
Enter the time parameter to return the UNIX format timestamp

int mktime (int hour,int minute,int second,int month,int day,int year)
Get the UNIX timestamp format of Greenwich Mean Time

int gmmktime (int hour,int minute,int second,int month,int day,int year)
Format a time or date

String date (string Format,int[timestamp])
Get an array of date/time information

Array getdate (int [timestamp])
Returns True if the date is valid

BOOL Checkdate (int month,int day,int [timestamp])
Format the server's time or date representation according to your locale

String Strftime (String format,int [timestamp])
Converts a string representing a date and time into a timestamp. A string that can accept most typical data formats. For example, YYYY-MM-DD
and mm/dd/yyyy

int Strtotime (String time,int now)
Gets the current time (Unix timestamp format) one out of 10,000 seconds value. return string

String Microtime (void)
Returns the current time as an array type

Array gettimeofday (void)
Set random number of

void Srand (int seed)
Returns a random number that, without specifying the maximum and minimum range of random numbers, will automatically take a random number from 0 to Rand_max
。 If a parameter of min and Max is specified, a number is taken from the specified argument

int rand ([int min],[int Max])
Returns the maximum allowable value of a random number

int Getrandmax (void)

http://www.bkjia.com/PHPjc/318607.html www.bkjia.com true http://www.bkjia.com/PHPjc/318607.html techarticle // output information about PHP and current instructions page intphpinfo (void)//return current PHP version number stringphpversion (void)///print out a list of the people who contributed to this PHP project stringphp ...

  • Related Article

    Contact Us

    The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

    If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

    A Free Trial That Lets You Build Big!

    Start building with 50+ products and up to 12 months usage for Elastic Compute Service

    • Sales Support

      1 on 1 presale consultation

    • After-Sales Support

      24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.