Question

我有一个测试区域，它是来自数据库的动态文本可能有数千个单词。我希望它打破并使每个段落在100（任何长度）单词附近完全停止。我可以在100个单词之后休息，但不能完全停止。为了在100（任何长度）单词后休息，我使用了以下功能。

function TrimString($String, $Length)
{
    if(strlen($String) > $Length)
    {
        $Temp[0] = substr($String, 0, $Length);
        $Temp[1] = substr($String, $Length);
        $SpacePos = strpos($Temp[1], ' ');
        if($SpacePos !== FALSE)
        {
            return $Temp[0].substr($Temp[1], 0, $SpacePos);
        }
    }
    return $String;
}

例如： -

function TrimString($String, $Length){
    if(strlen($String)<=$Length){
        $stringValue=$String;
    } else {
        $stringValue=substr($String,0,$Length) . '.';
    }
    return $stringValue;
}
$m=50;
$a="I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. ";
$data=TrimString($a,$m);
echo $data;

它为我提供了答案

I am a boy. I am a boy. I am a boy. I am a boy. I .

但我需要答案

I am a boy. I am a boy. I am a boy. I am a boy.

那么你可以帮我找到提供给该功能的长度附近的句号并打破段落。

Answer 1

在此添加句号(.)，如

 return $Temp[0].substr($Temp[1], 0, $SpacePos).".";

更新2：

<?php
function TrimString($String, $Length){
    if(strlen($String)<=$Length){
        $stringValue=$String;
    } else {
        $new_l = strpos ($String , ".", $Length);
        $Length = $new_l+1;
        $stringValue=substr($String,0,$Length);
    }
    return $stringValue;
}
$m=50;
$a="I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. I am a boy. ";
$data=TrimString($a,$m);
echo $data;
?>

输出：

I am a boy. I am a boy. I am a boy. I am a boy. I am a boy.

Answer 2

function TrimString($String, $Length){
 if(strlen($String)<=$Length){ 
  $stringValue=$String; 
 } else { 
  $stringValue=substr($String,0,$Length) . '.'; 
 }
 return $stringValue;
}

you are looking like this:

function TrimString($String, $Length){
 if(strlen($String)<=$Length){ 
  $stringValue=$String; 
 } else { 
  $stringValues=substr($String,0,$Length) . '.'; 
  $lengths=strrpos($stringValues,"."); 
  $stringValue=substr($stringValus,0,$lengths).".";
 }
 return $stringValue;
}

完全停止后接近100个单词的分页符的PHP代码

2 个答案: