选择语言 :

Core_Str::substr

截取字段

null Core_Str::substr( int $start [, int $length = null , string $encoding = string(5) "UTF-8" ] )

参数列表

参数类型描述默认值

$start int $start

$length int $length null

$encoding string $encoding string(5) "UTF-8"

File: ./core/classes/str.class.php

public function substr($start, $length = null, $encoding = 'UTF-8')
{
    return Text::substr($this->data , $start , $length , $encoding);
}