Mobile PHP library for parsing strings

<?php
if( file_exists(dirname(__FILE__).'/nicejson/nicejson.php') ) {
include_once dirname(__FILE__).'/nicejson/nicejson.php';
}
require_once dirname(__FILE__).'/../Mobile_Detect.php';
$detect = new Mobile_Detect;
$json = array(
// The current version of Mobile Detect class that
// is being exported.
'version' => $detect->getScriptVersion(),
// All headers that trigger 'isMobile' to be 'true',
// before reaching the User-Agent match detection.
'headerMatch' => $detect->getMobileHeaders(),
// All possible User-Agent headers.
'uaHttpHeaders' => $detect->getUaHttpHeaders(),
// All the regexes that trigger 'isMobile' or 'isTablet'
// to be true.
'uaMatch' => array(
// If match is found, triggers 'isMobile' to be true.
'phones'   => $detect->getPhoneDevices(),
// Triggers 'isTablet' to be true.
'tablets'  => $detect->getTabletDevices(),
// If match is found, triggers 'isMobile' to be true.
'browsers' => $detect->getBrowsers(),
// If match is found, triggers 'isMobile' to be true.
'os'       => $detect->getOperatingSystems(),
// Various utilities. To be further discussed.
'utilities' => $detect->getUtilities()
)
);

Strings are mainly used for programming. See the text for concept explanations, function explanations, and usage details. Here is an additional point: strings are similar to character arrays in storage, so each of its individual elements can be extracted. For example, s="abcdefghij", then s[1]="a", s[10]="j", and the zero position of the string is its length, such as s[0]=10 (※ The above function Ansistring No.), which can provide us with a lot of convenience. For example, each bit can be converted into a number and stored in an array during high-precision operations.