拆分变量的第一个字母 [英] Split the first letter from variable

问题描述

我需要从变量$ name拆分第一个字母。
我该怎么办？

I need to split the first letter from variable $name. How I can to do it?

$name = $userData['name'];

我如何获得第一封信？

请检查是否正确：

if($userData['gender'] == 'male'){
    if($firstletter=='i'){
    $picture = ImageCreateFromPNG ($global['maleBackgroundImages'][1]);
    }else{
          $picture = ImageCreateFromPNG ($global['maleBackgroundImages'][2]);}
}else{
    if($firstletter=='i'){
    $picture = ImageCreateFromPNG ($global['maleBackgroundImages'][1]);
    }else{
          $picture = ImageCreateFromPNG ($global['maleBackgroundImages'][2]);}
}

推荐答案

$userData['name'][0]

字符串中的偏移量可以像数组一样访问。请注意，假设您的字符串采用单字节编码。如果你有多字节编码的字符串，你需要：

Offsets in strings can be accessed like arrays. Be aware that this assumes your strings are in a single byte encoding. If you have multi-byte encoded strings, you need:

mb_substr($userData['name'], 0, 1, 'UTF-8' /* (the correct encoding) */)

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