php: how to read file, write file, append file?
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This site provides users with the information about php, read file, write file, how to read file, how to write file, read entire file, file append, and more.
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How to read file, write file, and append file in php?
The following is the code to read file, write file, and append file in php:
1. How to write file in php?
< ?php
$file = "test.txt";
$f_handle = fopen($myFile, 'w') or die("can't open file");
$inputData = "this is a test\n";
fwrite(f_handle, $inputData);
fclose(f_handle);
? >
Note:
'w' is for writing or replacing the entire contents of the file. For append, use 'a'.
2. How to read file in php?
< ?php
$file = "test.txt";
$f_handle = fopen($file, "r");
while (!feof($f_handle)) {
$line = fgets($f_handle);
echo $line;
}
fclose($f_handle);
? >
An example of reading entire file:
< ?php
$file = "test.txt";
$entire_file = file_get_contents($file);
echo $entire_file;
? >
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