Php buffer output instance analysis, php buffer instance Analysis _ PHP Tutorial

Php buffer output instance analysis and php buffer instance analysis. Php buffer output instance analysis. php buffer instance analysis this article describes the php buffer output usage. Share it with you for your reference. The specific analysis is as follows: ob_start ([stringoutput_ca php buffer output instance analysis, php buffer instance analysis

This example describes the php buffer output usage. Share it with you for your reference. The specific analysis is as follows:

Ob_start ([string output_callback])-open the output buffer

All output information is not directly sent to the browser, but saved in the output buffer. the optional callback function is used to process output result information.

Ob_end_flush-end (SEND) output buffer content, disable the output buffer

The instance code is as follows:

The code is as follows:

Ob_start (); // open the buffer
Echo "hello world"; // Output Content
$ Out = ob_get_clean (); // Obtain the buffer content and end the buffer.
$ Out = strtolower ($ out); // converts a character to lowercase.
Var_dump ($ out); // output result
//

If (! Function_exists ('OB _ clean') // checks whether the function is defined.
{
Function ob_clean () // define a function
{
If (@ ob_end_clean ())
{
Return ob_start ();
}
Trigger_error ("ob_clean () failed to delete buffer. no buffer to delete.", e_user_notice );
Return false;
}
}
//

Header ('content-type: multipart/x-mixed-replace; boundary = endofsection '); // send the header
Print "n -- endofsectionn"; // Output Content
$ Pmt = array ("-", "", "|", "/"); // defines an array
For ($ I = 0; $ I <10; $ I ++) // perform operations through loops
{
Sleep (1); // pause execution
Print "content-type: text/plainnn"; // Output content
Print "part $ it". $ pmt [$ I % 4]; // Output Content
Print "-- endofsectionn"; // Output Content
Ob_flush (); // sends the buffer data
Flush (); // refresh the output buffer
}
Print "content-type: text/plainnn"; // Output content
Print "the endn"; // Output Content
Print "-- endofsection -- n"; // Output Content

I hope this article will help you with php programming.

The example in this article describes the usage of php buffer output. Share it with you for your reference. The specific analysis is as follows: ob_start ([string output_ca...