fgetc

(PHP 3, PHP 4 , PHP 5)

fgetc -- Gets character from file pointer

Description

string fgetc ( resource handle)

Returns a string containing a single character read from the file pointed to by handle. Returns FALSE on EOF.

The file pointer must be valid, and must point to a file successfully opened by fopen() or fsockopen().

警告

這個函數可能回傳布林值 FALSE,但也可能回傳一個同於 FALSE 的非布林值,像是0或 ""請參考Booleans此節有更多資訊。使用 === 運算子來測試這個函數的回傳值。

範例 1. A fgetc() example

<?php
$fp
= fopen('somefile.txt', 'r');
if (!
$fp) {
    echo
'Could not open file somefile.txt';
}
while (
false !== ($char = fgetc($fp))) {
    echo
"$char\n";
}
?>

注: 這個函數可安全的使用於二進位。

See also fread(), fopen(), popen(), fsockopen(), and fgets().