Using js to call php content in HTML web pages_PHP tutorial

We often see that the statistical codes of many websites are displayed in the form of js calls. Let’s take a look at an example.

　$countfile = "num.txt";

//The file written by the definition counter is num.txt in the current directory, and then we should test whether the file can be opened

　if (($fp = fopen($countfile, "r+")) == false) { //Open the file in read-write mode, exit if it cannot be opened

printf ("Failed to open file %s!",$countfile);

exit;

　}

else

　{

//If the file can be opened normally, read the data in the file, assuming it is 1

　$count = fread ($fp,10);

//Read 10-bit data

　$count = $count + 1;

　fclose ($fp);

//Close the current file

　$fp = fopen($countfile, "w+");

//Open the file in overwrite mode

　fwrite ($fp,$count);

//Write new data plus 1

　fclose ($fp);

//And close the file

echo 'document.write("'.$count.'")';

//Output data in javascript form

　}

　?>

Save the above content to FileCount.php, and create num.txt in the same directory.

In the html file, js calls the method.

http://www.bkjia.com/PHPjc/752062.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/752062.htmlTechArticleWe often see that the statistical codes of many websites are displayed in the form of js calls. Let’s do this below Let’s look at an example. $countfile = num.txt; //The file that defines the counter is written to...