Append a String to a File Using PHP

To append a string to a file you will need to open the file using fopen() with the 'a' parameter. For example if your log file name is mylog.txt you would write the code like this :

// open the log file and check if the it's opened successfully 

if (!($fp = fopen('mylog.txt', 'a'))) {

   die('Cannot open log file');

}

// ... your code do something here

// append to log file 

// make sure you add a newline character at the end of the log string 

fwrite($fp, "Initiate world domination\n"); 

// ... do some stuff here 

// ... and your code do something else here

// append another line to the log file 

fwrite($fp, "World domination completed. Bwa ha ha ha...!!");