如何在PHP中将句子中的第一个字母大写？

Question

可能的重复：
如何将第一个字母显示为大写？
PHP 将句子中第一个单词的第一个字母大写

我想将句子中的第一个字母和句号后的字母大写。谁能建议怎么做？

例如，

//I have the following in a language class.
"%s needs to identify areas of strength and 
weakness. %s sets goals for self-improvement."; 

// in a view
$contone=$this->lang->line($colstr);// e.g get the above string.
//$conttwo=substr($contone, 3);//skip "%s " but this doesnot work when there 
//are more than one %s
$conttwo=str_replace("%s ", "", $contone);// replace %s to none 
$contthree = ucfirst($conttwo); // this only uppercase the first one

我想要以下输出。

Needs to identify areas of strength and 
weakness. Sets goals for self-improvement.

Answer 1

尝试下面。

它将运行该函数，将具有多个句子的字符串中句号（句点）后的每个字母大写。

    $string = ucfirst(strtolower($string));     

    $string = preg_replace_callback('/[.!?].*?\w/', create_function('$matches', 'return strtoupper($matches[0]);'),$string);

    echo $string;

请进行必要的更改。

Answer 2

试试这个：

<?php
//define string
$string = "your sentences";

//first we make everything lowercase, and then make the first letter if the entire string capitalized
$string = ucfirst(strtolower($string));

//now we run the function to capitalize every letter AFTER a full-stop (period).
$string = preg_replace_callback('/[.!?].*?\w/', create_function('$matches', 'return strtoupper($matches[0]);'),$string);

//print the result
echo $string;

?>