通过fwrite将换行符添加到输出文件 [英] Adding line breaks to output file via fwrite

问题描述

我正在尝试格式化下面创建的文件，以使每个名称/值对都位于单独的行上

I'm trying to format the file I'm creating below so that each name/value pair is on its own line

我确定这很容易，但是我的.ini文件根本没有格式化换行符.我想念什么?

I'm sure this is easy, but my .ini file is not formatting the line breaks at all. what am I missing?

function wpseTest()
{
    $query = "SELECT option_name, option_value FROM wp_options where option_name like 'test|_%' escape '|' AND option_value > ''";
    global $wpdb;
    $matches = $wpdb->get_results($query);

    $mySettings = '[settings]\r\n';

    foreach ($matches as $result){
        $mySettings .= $result->option_name;
        $mySettings .= ' = ';
        $mySettings .= $result->option_value;
        $mySettings .= '\r\n';
    }

    $mySettingsFileLocation = WP_PLUGIN_DIR.'/test/settings-backup.ini';
    $mySettingsFile = fopen($mySettingsFileLocation, 'w');
    fwrite($mySettingsFile, $mySettings);
    fclose($mySettingsFile);
}

推荐答案

像\r和\n这样的特殊字符不会用单引号引起来.请使用双引号代替.

Special characters like \r and \n do not get interpreted in single quotes. Use double quotes instead.

$mySettings = "[settings]\r\n";

和

$mySettings .= "\r\n";

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