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SplFileObject::setMaxLineLen

(PHP 5 >= 5.1.0, PHP 7)

SplFileObject::setMaxLineLenSet maximum line length

说明

public void SplFileObject::setMaxLineLen ( int $max_len )

Sets the maximum length of a line to be read.

参数

max_len

The maximum length of a line.

返回值

没有返回值。

错误/异常

Throws DomainException when max_len is less than zero.

范例

Example #1 SplFileObject::setMaxLineLen() example

<?php
$file 
= new SplFileObject("lipsum.txt");
$file->setMaxLineLen(20);
foreach (
$file as $line) {
    echo 
$line "\n";
}
?>

Contents of lipsum.txt

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Duis nec sapien felis, ac sodales nisl.
Nulla vitae magna vitae purus aliquet consequat.

以上例程的输出类似于:

Lorem ipsum dolor s
it amet, consectetu
r adipiscing elit.

Duis nec sapien fel
is, ac sodales nisl
.

Nulla vitae magna v
itae purus aliquet 
consequat.

参见

  • Classname::Method()

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