PHP

The 1th method: Copy Code code as follows: function Get_extension ($file) { substr (STRRCHR ($file, '. '), 1); } The 2nd method: Copy Code code as follows: function Get_extension ($file) { Return

NL2BR ()//\ n to Addslashes (); Stripslashes ()//to the database operation, escape special characters Chop ()//drop the right space of the string Trim ();//drop all spaces in the string LTrim ()//drop left space in string Htmlspecialchars

Copy Code code as follows: $foo = ' Bob '; Assign ' Bob ' to $foo $bar = & $foo; $foo by $bar Reference echo $foo. ' '; $bar = "My name is $bar"; Modify $bar variable echo $bar. ' '; echo $foo. ' '; The value of the $foo has also been

Copy Code code as follows: Echo ' Begin time: '. $begin =microtime (false). ' ';//begin to count time $array =array (); For ($i =1 $i $array [$i]= $i; } /* $arr = $array//copy copy and print total time 0.02 foreach ($arr as $ar) { echo $

Copy Code code as follows: /* PHP UBB Code Editor */ function Get_ubb ($ubb) { $ubb =preg_replace ("/([B]) (. *) ([/II])/", "\2", $ubb);//replace bold word in B $ubb =preg_replace ("/([I]) (. *) ([I])/", "\2", $ubb); $ubb =preg_replace ("

Prohibit a single IP Add IP Access Restrictions if (getenv (' http_client_ip ') && strcasecmp (getenv (' http_client_ip '), ' unknown ')) { $userip = getenv (' http_client_ip '); } elseif (getenv (' http_x_forwarded_for ') && strcasecmp (getenv ('

Simple Choice sorting algorithm: Through the comparison between the N-i, select the smallest key word record from the n-i+1 record and exchange with the first (1 Copy Code code as follows: Class sort{ /** * Simple choice of sorting *

The function used to define the top-level exception handler is Set_exception_handler ("My_exception"); The my_expection here is the developer's custom exception handler, which is the top exception processor, and only if there is no function in the

First of all, the use of this mechanism, so far the battlefield knows that the mechanism has two aspects of use: First, multi-server sharing session issues, which you should all understand, when a site's users are too large, you will use a server

Usually use $_post['],$_get['] to get the parameters in the form will appear Notice: Undefined index:--------; We often receive the form POST Data times undefined index error, as follows: $act =$_post[' action '];Always prompt with the above

Copy Code code as follows: $x = ' I am very long, how to change the line? I'm a long, How do I change lines? I am very long, how to change the line? I'm a long, How do I change lines? I am very long, how to change the line? '; $xx = I'm

Copy Code code as follows: $name = "admin";//kkkk $BB = ' 234 '; $db = 4561321; $KKK = "admin"; ?> function definition: Profile data value fetch: function GetConfig ($file, $ini, $type = "string") Profile Data Item Update:

This article analyzes the use of the Get_object_vars () method in PHP. Share to everyone for your reference. The specific analysis is as follows: Syntax: Get_object_var ($object), returns an array. Gets the properties in the $object object, forming

Using PHP encoding to generate PDF files is a time-consuming task. In the early days, developers used PHP and fpdf to generate PDF files. But now, there are a lot of libraries available, and you can generate PDF documents from the HTML files you

Variable declaration If you declare a variable in a statement, it looks like this: $var = ' value '; The compiler first gets the value of the right half of the statement, which is precisely the part of the statement that often throws an error. If

Copy Code code as follows: $array =array (1,2,3,4,5); Echo $array [Count ($array) -1];//computes the length of the array, and then gets the last element of the array, and if the last element in the array contains a Non-numeric key, the result

This example describes the way PHP uses curl to forge IP and source. Share to everyone for your reference. The specific analysis is as follows: Fake IP source for PHP is very simple one thing, we only use the PHP curl to achieve the ability to fake

Copy Code code as follows: This method is purely a back function and does not explain; function Countstr ($STR) { $str _array=str_split ($STR); $str _array=array_count_values ($str _array); Arsort ($str _array); return $STR _array; }

Resources:http://www.php.net/manual/zh/book.imagick.php Premise Copy Code code as follows: $im = new Imagick ("TEST.PSD"); Get number of layers Copy Code code as follows: $num _layers = $im->getnumberimages (

This article describes the PHP file upload simple implementation method. Share to everyone for your reference. Specifically as follows: File 1:index.php Copy Code code as follows: User name: Password: Upload Picture: