[Статья] Полезные функции/скрипты PHP

10-24-2013, 01:41 PM

Функция очистки скрипта от комментариев:

Code:

function remove_comments($code) {  
    $array = token_get_all($code);  
    $ret = "";  
    for($i = 0; $i < count($array); $i++) 
        {     
            $obj = $array[$i];  
            if(is_string($obj)) 
                { 
                    $ret .= $obj;  
                } 
            else  
                {  
                    if(!strstr(token_name($obj[0]),"COMMENT"))  
                    $ret .= $obj[1];  
                }  
        }  
    return $ret;  
}

Транслит

Code:

function totranslit($var, $lower = true, $punkt = true) {     $NpjLettersFrom = "абвгдезиклмнопрстуфцыі"; 
    $NpjLettersTo = "abvgdeziklmnoprstufcyi"; 
    $NpjBiLetters = array ("й" => "j", "ё" => "yo", "ж" => "zh", "х" => "x", "ч" => "ch", "ш" => "sh", "щ" => "shh", "э" => "ye", "ю" => "yu", "я" => "ya", "ъ" => "", "ь" => "'", "ї" => "yi", "є" => "ye" ); 
     
    $NpjCaps = "АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЬЪЫЭЮЯЇЄІ"; 
    $NpjSmall = "абвгдеёжзийклмнопрстуфхцчшщьъыэюяїєі"; 
     
    $var = str_replace( ".php", "[точко]пэхопэ", $var ); 
    $var = trim( strip_tags( $var ) ); 
    $var = preg_replace( "/\s+/ms", "-", $var ); 
    $var = strtr( $var, $NpjCaps, $NpjSmall ); 
    $var = strtr( $var, $NpjLettersFrom, $NpjLettersTo ); 
    $var = strtr( $var, $NpjBiLetters ); 
     
    if ( $punkt ) $var = preg_replace( "/[^a-z0-9\_\-.]+/mi", "", $var ); 
    else $var = preg_replace( "/[^a-z0-9\_\-]+/mi", "", $var ); 


    $var = preg_replace( '#[\-]+#i', '-', $var ); 


    if ( $lower ) $var = strtolower( $var ); 
     
    if( strlen( $var ) > 50 ) { 
         
        $var = substr( $var, 0, 50 ); 
         
        if( ($temp_max = strrpos( $var, '-' )) ) $var = substr( $var, 0, $temp_max ); 
     
    } 
     
    return $var; 

}

Очистка ссылки от мусора

Code:

function clean_url($url) {      
    if( $url == '' ) return; 
     
    $url = str_replace( "http://", "", strtolower( $url ) ); 
    if( substr( $url, 0, 4 ) == 'www.' ) $url = substr( $url, 4 ); 
    $url = explode( '/', $url ); 
    $url = reset( $url ); 
    $url = explode( ':', $url ); 
    $url = reset( $url ); 
     
    return $url; 

}

Проверяем не с кпк\телефона ли зашел пользователь

Code:

function checkSmartphone() { 
    $phone_array = array('iphone', 'pocket', 'palm', 'windows ce', 'windowsce', 'cellphone', 'opera mobi', 'ipod', 'small', 'sharp', 'sonyericsson', 'symbian', 'opera mini', 'nokia', 'htc_', 'samsung', 'motorola', 'smartphone', 'blackberry', 'playstation portable', 'tablet browser'); 
    $agent = strtolower( $_SERVER['HTTP_USER_AGENT'] ); 


    foreach ($phone_array as $value) { 


        if ( strpos($agent, $value) !== false ) return true; 


    } 
    return false; 
}

Проверка Тиц

Code:

<? 


function getTIC($site)  { 
    $url = 'http://'.$site; 
    $str=@file('http://bar-navig.yandex.ru/u?ver=2&show=32&url='.$url); 
    if ($str==false) { 
        $ans=false;      }  
    else { 
    $is_find=preg_match("/value=\"(.\d*)\"/", join("",$str), $tic); 
    if ($is_find<1) { 
        $ans=0;     }  
    else { 
    $ans=$tic[1]; } 
         }      
return $ans;                 
} 


print 'Тиц: '.getTIC("site.ru"); 


?>

Класс для работы с комплексными числами. Позволяет прибавлять, отнимать, умножать и делить комплексные числа.
class.complex.php

Code:

<?php  


///////////////////////////////////////////////////////////////  
// Reza Salehi  
// zaalion @ yahoo.com  
// free for non-commercial use.  
///////////////////////////////////////////////////////////////  


    class complex  
        {  
        function complex($first, $second)  
            {  
            $this->first['re']=$first['re'];  
            $this->first['im']=$first['im'];  
            $this->second['re']=$second['re'];  
            $this->second['im']=$second['im'];  
            }  
        function add()  
            {  
            $result['re']=$this->first['re']+$this->second['re'];  
            $result['im']=$this->first['im']+$this->second['im'];  
            return($result);  
            }  
        function sub()  
            {  
            $result['re']=$this->first['re']-$this->second['re'];  
            $result['im']=$this->first['im']-$this->second['im'];  
            return($result);  
            }  
        function mul()  
            {  
            $result['re']=($this->first['re']*$this->second['re'])-($this->first['im']*$this->second['im']);  
            $result['im']=($this->first['re']*$this->second['im'])+($this->second['re']*$this->first['im']);  
            return($result);  
            }  
        function div()  
            {  
            if(($this->second['re']==0 && $this->second['im']==0))  
                retuen(-1);  
            $a=$this->first['re'];  
            $b=$this->first['im'];  
            $c=$this->second['re'];  
            $d=$this->second['im'];  
            @$result['re']=((a*c+b*d)/(c*c-d*d));  
            @$result['im']=((b*c-a*d)/(c*c-d*d));  
            return($result);  
            }  
        }  
?>

Класс для определения рейтинга сайта в Alexa.
Alexa.class.php

Code:

<?php  
/**  
 * @author [YS.PRO]  
 * @copyright Copyright &copy; 2009, [YS.PRO]  
 * http://ys-pro.com  
 * @version 0.2  
 */  
class Alexa {  


    const CURL_TIMEOUT = 20;  
    const ALEXA_SITE_INFO_URL = 'http://www.alexa.com/siteinfo/';  


    private $domain = NULL;  
      
    public function __construct($domain = NULL) {  
        if (!is_null($domain)) {  
            $this->domain = $domain;  
        } else {  
            throw new Exception('You must pass domain name to constructor!');  
        }  
    }  
      
    public function setDomain($domain) {  
        $this->domain = $domain;  
    }  


    public function getAlexaRank() {  
        $response = $this->get(self::ALEXA_SITE_INFO_URL . $this->domain);  
        // parse string with alexa ranking info  
        $regexp = '#<div class="data .+?">(.*?)</div>#si';  
        preg_match($regexp, $response, $matches);  
        if (!isset($matches[1])) {  
            return FALSE;  
        }  
        preg_match('#[\d,]+#s', $matches[1], $m);  
        if (!isset($m[0])) {  
            return FALSE;  
        }  
        $rank = $m[0];  
        // delete commas  
        $rank = str_replace(',', '', $rank);  
        return (int) $rank;  
    }  
      
    protected function get($url) {  
        $hCurl = curl_init($url);  
        curl_setopt($hCurl, CURLOPT_TIMEOUT, self::CURL_TIMEOUT);  
        curl_setopt($hCurl, CURLOPT_RETURNTRANSFER, TRUE);  
        return curl_exec($hCurl);  
    }  
}  
?>