如何优雅地从字符串中剔除注释或冗余信息？webignition/disallowed-character-terminated-string助你事半功倍！

<pre class="brush:php;toolbar:false;">// 假设这是我们想处理的字符串
$line1 = 'config_key = value # 这是一个配置项的注释';
$line2 = 'another_key = another_value; 另一个注释';
$line3 = 'no_comment_here';

// 繁琐的传统处理方式
$commentPos1 = strpos($line1, '#');
$commentPos2 = strpos($line1, ';');

$minPos = false;
if ($commentPos1 !== false && ($minPos === false || $commentPos1 < $minPos)) {
    $minPos = $commentPos1;
}
if ($commentPos2 !== false && ($minPos === false || $commentPos2 < $minPos)) {
    $minPos = $commentPos2;
}

if ($minPos !== false) {
    $processedLine1 = substr($line1, 0, $minPos);
} else {
    $processedLine1 = $line1;
}

echo "处理后的行1: " . trim($processedLine1) . "\n"; // 输出: config_key = value
// ... 对其他行重复此逻辑，代码会变得非常冗长

<code class="bash">composer require webignition/disallowed-character-terminated-string</code>

<pre class="brush:php;toolbar:false;"><?php

use webignition\DisallowedCharacterTerminatedString\TerminatedString;

// 我们的原始字符串，包含注释
$stringWithComment = 'config_key = value # 这是一个配置项的注释';
// 另一个字符串，使用分号作为终止符
$stringWithSemicolon = 'another_key = another_value; 另一个注释';
// 没有终止符的字符串
$stringWithoutTerminator = 'just_a_plain_string';

// 1. 剔除 # 后面的内容
$terminatedString1 = new TerminatedString($stringWithComment, ['#']);
echo "处理后的字符串1: '" . $terminatedString1->get() . "'\n";
// 预期输出: 'config_key = value '

// 2. 剔除 ; 后面的内容
$terminatedString2 = new TerminatedString($stringWithSemicolon, [';']);
echo "处理后的字符串2: '" . $terminatedString2->get() . "'\n";
// 预期输出: 'another_key = another_value'

// 3. 应对没有终止符的情况
$terminatedString3 = new TerminatedString($stringWithoutTerminator, ['#', ';']);
echo "处理后的字符串3: '" . $terminatedString3->get() . "'\n";
// 预期输出: 'just_a_plain_string' (原样返回)

// 4. 同时指定多个终止字符
$line = 'complex_data // Some inline comment';
$terminatedLine = new TerminatedString($line, ['#', '//', ';']);
echo "处理后的复杂行: '" . $terminatedLine->get() . "'\n";
// 预期输出: 'complex_data '