Question

我在下面有一个示例字符串，并希望删除任何单个字符，因此以下内容：

$string = 'N W N W Some useful test what I would like to keep'

可以成为：$stringNew = 'Some useful test what I would like to keep'

此外，我想要一个通用的解决方案，因为上面的字符串会有所不同，字符串中的独立字母也会有所不同。非常感谢任何帮助。

Answer 1

使用preg_replace()执行此操作。使用以下代码

<?php
$string = 'N W N W Some useful test what I would like to keep'
echo preg_replace('/\b\w\b\s?/', '', $string); // will print Some useful test what would like to keep
?>

如果您不想让我被替换，请使用此代码

<?php 
$string = "N W N W Some useful test what I would like to keep";
$array = explode(" ",$string);
$new = "";
foreach($array as $p){
    if($p=="I"){
    echo " ".$p;
    }
    else{
        if(strlen($p)!==1){
            echo " ".$p;
        }
    }
}
echo trim($new); // will print Some useful test what I would like to keep
?>

希望这有助于你

从字符串中删除单个独立字符

1 个答案: