How to write to a file in PHP?

@lizzie 

In PHP, you can write to a file using the fwrite() function or the file_put_contents() function. Here are the steps to write to a file using these functions:

Using fwrite():

1. Open the file using the fopen() function with the w or a mode.
2. Write the data to the file using the fwrite() function.
3. Close the file using the fclose() function.

Here's an example code snippet:

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$file = fopen("myfile.txt", "w");
fwrite($file, "Hello World!");
fclose($file);

Using file_put_contents():

1. Specify the file name and the data to be written to the file as arguments to the file_put_contents() function.
2. If you want to append to an existing file, set the FILE_APPEND flag as the third argument.

Here's an example code snippet:

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file_put_contents("myfile.txt", "Hello World!");

To append to an existing file:

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file_put_contents("myfile.txt", "Hello World!", FILE_APPEND);

Note: You need to have the necessary file permissions to write to a file.