function of php

This article mainly introduces the PHP file cache class usage, in the case of the form of a more detailed analysis of the PHP file cache class definition, function and specific use of skills, very practical value, the need for friends can refer to

This article mainly introduces the PHP output buffer introduction and the function, the interest friend's reference, hoped to be helpful to everybody. Overview Previously researched PHP input and output buffers, but after the blog moved, the

This article mainly introduces the PHP Commission scheme database design and function, interested in the reference of friends, hope to help you. In the recent CRM project, a recursive commission scheme was used to analyze the following: The SQL

Php regular expression verification email function Function isemail ($ email ){ Return strlen ($ email)> 8 & preg_match ("/^ [-_ +. [: alnum:] + @ ([[: alnum:] | [[: alnum:] [[: alnum:]-] * [[: alnum:])

This article mainly introduces the php mkdir () function to create secure permission settings for folders. in this case, the system umask affects the specified permission parameters of mkdir, which is smaller than expected, there is no such problem

Now there is a system, need to enter the bulk of the real estate information. This is roughly the logic: For example, the building number for the A1 of the building, the building has 20 floors, 15 rooms per floor, then the database into a batch

Function getalexarank ($ domain = "www.wangchao.net.cn "){$ Line = "";$ DATA = "";$ Url = "http://data.alexa.com/data? CLI = 10 & dat = snba & ver= 7.0 & url = ". $ domain;$ Fp = fopen ($ URL, "R ");If ($ FP){While (! Feof ($ FP )){$ Line = fgets ($

How does php handle the check vote function? I have a question. I have a check box form. & lt; formaction = ''method = 'post' name = & quot; form & quot; & gt; & lt; inputtype = & quot; checkbox & quot; id = & quot; sel & quot; nam php I have a

This article to tell about the ISBN check method, there is a need for students to refer to. Considering a rigorous book management process to take into account a variety of issues, because the 10-bit ISBN code Books still have a huge amount of

The function is defined like this: int ord (string$string) Returns the ASCII code value of the first character of a string. This function is a complementary function of Chr (). Try it:Echo Ord (' I '); Here can only return 230, I was saved

Of course, the main is to find the bug, otherwise there is no other role, such as it can find out the code logic structure What, there is this confusion, please advise. Reply to discussion (solution) It is not enough to find the bug, and the

There are quite a few ways. Previously more commonly used is the IFRAME to do so. Now there is an Ajax, so the general situation is to use Ajax. The first approach, AJAX implementations:Of course, Ajax is actually very simple to implement, but a

ForThis time in reading "PHP and MySQL Web development" a book to see Str_replace explanation, a little hint to write: can be used in the array of Str_replace three, but the explanation is relatively simple, so decided to experiment with the

PHP's substr function fully simulates ASP's right function. some people say that substr can completely replace ASP's right function // right & nbsp; (x) substr ($ str,-x ); & nbsp; but if x = 0, it cannot be replaced at all. Is there any way to

Strange problem about the array_key_exists function in php & nbsp; $ arrFinal = array (); & nbsp; for ($ I = 0; $ I & lt; 5; $ I ++) & nbsp; {if (array_key_exists ('A', $ arrFinal) the array_key_exists function of continue php has a strange problem.

Copy codeThe Code is as follows:// The same timestamp Formatting Function as PHP// @ Param {string} format// @ Param {int} timestamp the time to be formatted is the current time by default// @ Return {string} the formatted time stringFunction date

Function cnSubStr ($ string, $ sublen){If ($ sublen> = strlen ($ string )){Return $ string;}$ S = "";For ($ I = 0; $ I {If (ord ($ string {$ I})> 127){$ S. =$ string {$ I}. $ string {++ $ I };Continue;} Else {$ S. =$ string {$ I };Continue;}}Return $

The difference between the Ceil,floor,round,intval function of PHP's rounding function1, ceil-into a method to take the wholeDescriptionfloat ceil (float $value)Returns the next integer not less than value, in which value is entered if there is a

This article mainly introduces the function for PHP to obtain the current complete URL address. For more information, see This article mainly introduces the function for PHP to obtain the current complete URL address. For more information, see

For example, the more detailed the question, the better. Thank you! {Code...}. It only requires adding & #039; H & #039; in the second parameter. Only one step is required! Of course, Return & #039; 1 & #039! This function is quite simple, but: