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php fgetc 函数

Jun 13, 2016 am 11:17 AM
phponefunctiondeal withcharacterstringpointerdocumentObtainresource

php fgetc 函数  

fgetc
( PHP 4中, PHP 5中)

fgetc -获取字符从文件指针

描述
字符串fgetc (资源$处理)
获取一个字符从给定文件指针。

参数

把柄
文件指针必须有效,必须指向一个文件成功打开fopen ( )或者fsockopen ( ) (和尚未关闭fclose ( ) ) 。


返回值
返回一个字符串包含一个单一的字符读取文件指出,由处理。返回FALSE的EOF分析。

警告
这个功能可能会返回布尔错误的,而且还可以返回一个非布尔值的计算为false ,如0或“ ” 。请仔细阅读部分布尔以获取更多信息。使用===操作符进行测试的返回值这一职能。

实例

例如# 1 fgetc ( )的例子

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


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