function stringParser($string,$replacer){

$result = str_replace(array_keys($replacer), array_values($replacer),$string);

return $result;

}

使用方法如下：

$string = 'The {b}anchor text{/b} is the {b}actual word{/b} or words used {br}to describe the link {br}itself';

$replace_array = array('{b}' => '<b>','{/b}' => '</b>','{br}' => '<br />');

echo stringParser($string,$replace_array);

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