How can PHP developers streamline their code for character conversion using functions like str_replace() and iconv()?

PHP developers can streamline their code for character conversion by utilizing functions like str_replace() and iconv(). These functions allow developers to easily replace or convert characters within strings, making the process more efficient and concise. By using these functions, developers can quickly and effectively handle character conversion tasks in their PHP applications.

// Using str_replace() to replace characters
$text = "Hello, world!";
$new_text = str_replace("o", "0", $text);
echo $new_text;

// Using iconv() to convert characters
$text = "Привет, мир!";
$new_text = iconv("UTF-8", "ASCII//TRANSLIT", $text);
echo $new_text;