10 Super Useful PHP code clips decisive collection _php tips

This small series will give you 10 of the most useful PHP code snippets.

1. Find the distance between longitudes and latitudes

function Getdistancebetweenpointsnew ($latitude 1, $longitude 1, $latitude 2, $longitude 2) {$theta = $longitude 1-$longit 
 Ude2; $miles = (sin (Deg2rad ($latitude 1)) * Sin (Deg2rad ($latitude 2)) + (cos (Deg2rad ($latitude 1)) * cos (Deg2rad ($latitude 2)) * 
 Cos (Deg2rad ($theta))); 
 $miles = ACOs ($miles); 
 $miles = Rad2deg ($miles); 
 $miles = $miles * 60 * 1.1515; 
 $feet = $miles * 5280; 
 $yards = $feet/3; 
 $kilometers = $miles * 1.609344; 
 $meters = $kilometers * 1000; 
Return compact (' Miles ', ' feet ', ' yards ', ' kilometers ', ' meters '); 
$point 1 = Array (' lat ' => 40.770623, ' Long ' =>-73.964367); 
$point 2 = Array (' lat ' => 40.758224, ' Long ' =>-73.917404); 
$distance = getdistancebetweenpointsnew ($point 1[' lat '), $point 1[' long ', $point 2[' lat '], $point 2[' long ']); 
foreach ($distance as $unit => $value) {echo $unit. ': ' Number_format ($value, 4). ' 
'; The example returns the following:miles:2.6025 feet:13,741.4350 yards:4,580.4783 kilometers:4.1884 meters :4,188.3894  

2. Perfect Curl function

function Xcurl ($url, $ref =null, $post =array (), $ua = "mozilla/5.0" (X11; Linux x86_64; Rv:2.2a1pre) gecko/20110324 firefox/4.2a1pre ", $print =false) { 
 $ch = Curl_init (); 
 curl_setopt ($ch, Curlopt_autoreferer, true); 
 if (!empty ($ref)) { 
 curl_setopt ($ch, Curlopt_referer, $ref); 
 } 
 curl_setopt ($ch, Curlopt_url, $url); 
 curl_setopt ($ch, Curlopt_header, 0); 
 curl_setopt ($ch, curlopt_followlocation, 1); 
 curl_setopt ($ch, Curlopt_returntransfer, 1); 
 if (!empty ($ua)) { 
 curl_setopt ($ch, curlopt_useragent, $ua); 
 } 
 if (count ($post) > 0) { 
 curl_setopt ($ch, Curlopt_post, 1); 
 curl_setopt ($ch, Curlopt_postfields, $post); 
 } 
 $output = curl_exec ($ch); 
 Curl_close ($ch); 
 if ($print) { 
 print ($output); 
 } else {return 
 $output; 
 } 
} 

3. Clean up user input

]*?>.* @si ',//Strip out JavaScript 
 ' @<[\/\!] *? [^<>]*?> @si ',  //strip out HTML tags 
 ' @]*?>.*? @siU ',//strip style tags properly 
 ' @@ '  / Strip multi-line comments 
 ); 
 
 $output = Preg_replace ($search, ', $input); 
 return $output; 
> 
$val) { 
  $output [$var] = sanitize ($val); 
 } 
 else { 
 if (GET_MAGIC_QUOTES_GPC ()) { 
  $input = stripslashes ($input); 
 } 
 $input = CleanInput ($input); 
 $output = mysql_real_escape_string ($input); 
 } 
 return $output; 
> 

4. Detect geographical location via IP (city, country)

function Detect_city ($ip) {$default = ' Hollywood, CA ';  if (!is_string ($IP) | | strlen ($IP) < 1 | | $ip = = ' 127.0.0.1 ' | | | $ip = ' localhost ') $ip = ' 8.8.8.8 '; $curlopt _useragent = ' mozilla/5.0 (Windows; U Windows NT 5.1; En-us;  rv:1.9.2) gecko/20100115 firefox/3.6 (. NET CLR 3.5.30729) '; $url = ' http://ipinfodb.com/ip_locator.php?ip= '.  UrlEncode ($IP);  $ch = Curl_init (); $curl _opt = Array (curlopt_followlocation => 1, curlopt_header => 0, Curlopt_returntransfer => 1, CURLO Pt_useragent => $curlopt _useragent, Curlopt_url => $url, curlopt_timeout => 1, curlopt_referer => ' http://'. 
 
 $_server[' Http_host '],); 
 
 Curl_setopt_array ($ch, $curl _opt); 
 
 $content = curl_exec ($ch); 
 if (!is_null ($curl _info)) {$curl _info = Curl_getinfo ($ch); 
 
 } curl_close ($ch); if (Preg_match (' {City: ([^<]*)}i ', $content, $regs)) {$city = $regs [1];} if (Preg_match (' {state/provi NCE: ([^<]*)}i ', $content, $regs) {$state = $regs [1];} if ($city!= ' && $state!= ') {$location = $city. ', ' . $state; return $location; 


 }else{return $default}}

5. Set Password strength

 { 
 $strength = + 
 } 
 return $strength; 
} 
 
Var_dump (password_strength ("Correct horse Battery staple")); 
echo " 
"; 
Var_dump (Password_strength ("Super monkey Ball")); 
echo " 
"; 
Var_dump (Password_strength ("tr0ub4dor&3")); 
echo " 
"; 
Var_dump (Password_strength ("abc123")); 
echo " 
"; 

6. Detect browser language, only available $availablelanguages as array (' en ', ' de ', ' es ')

function Get_client_language ($availableLanguages, $default = ' en ') { 
 
 if (isset ($_server[' http_accept_language ')) { 
  
 $langs =explode (', ', $_server[' http_accept_language ')); 
 
 Start going through each one 
 foreach ($langs as $value) { 
 
  $choice =substr ($value, 0,2); 
  if (In_array ($choice, $availableLanguages)) {return 
  $choice 
   
  } 
 }} return $default; 
} 

7. Create a Data URL

function Data_uri ($file, $mime) { 
 $contents =file_get_contents ($file); 
 $base 64=base64_encode ($contents); 
 echo "Data: $mime; base64, $base 64"; 

8. Create a more friendly page title SEO URL

Input example: $title = "This foo's Bar is Rockin ' cool!"; echo Makeseoname ($title); RETURNS://this-foos-bar-is-rockin-cool

function Make_seo_name ($title) {return 
 preg_replace ('/[^a-z0-9_-]/i ', ', ', Strtolower (Str_replace (', '), Trim ($ title))); 
 

9. Ultimate Encryption function

F (ucking) U (ncrackable) e (ncryption) function by Blackhatdbl (www.netforme.net) 
function Fue ($hash, $times) { 
 //Execute the encryption (s) as many the user wants for 
 ($i = $times; $i >0; $i-) { 
 //Encode with BAS 
 E64 ... $hash =base64_encode ($hash); 
 and MD5 
 ... $hash =md5 ($hash); 
 SHA1 ... $hash =SHA1 ($hash); 
 Sha256 ... (One more) 
 $hash =hash ("sha256", $hash); 
 sha512 
 $hash =hash ("sha512", $hash); 
 
 } 
 Finaly, the return of the value return 
 $hash; 

10a. The tweeter Feed runner--uses any Twitter name to load user resources on any page.

 pversion; The Public Function loadtimeline ($user, $max =) {$this->twiturl. = ' statuses/user_timeline.xml?screen_name= '. $user .' 
 &count= '. $max; 
 $ch = Curl_init (); 
 curl_setopt ($ch, Curlopt_url, $this->twiturl); 
 curl_setopt ($ch, Curlopt_returntransfer, true); 
 $this->xml = curl_exec ($ch); 
 return $this; 
 The Public Function gettweets () {$this->twitterarr = $this->gettimelinearray (); 
 $tweets = Array (); foreach ($this->twitterarr->status as $status) {$tweets [$status->created_at->__tostring ()] = $status- 
 >text->__tostring (); 
 return $tweets; 
 The Public Function Gettimelinearray () {return simplexml_load_string ($this->xml); The Public Function Formattweet ($tweet) {$tweet = Preg_replace ("/(http (. +?)) 
 (|$)/"," $1$3 ", $tweet); $tweet = Preg_replace ("/#" (. +?) 
 (\h|\w|$)/"," #$1$2 ", $tweet); $tweet = Preg_replace ("/@" (. +?) 
 (\h|\w|$)/"," @$1$2 ", $tweet); 
 return $tweet; } 
} 

10b. Tweeter Feed runner--is used to create files in themes, such as: example.php

Loadtimeline ("Phpsnips")->gettweets (); 
foreach ($feed as $time => $message) { 
 echo ' <div class= ' tweet ' > '. $twitter->formattweet ($message). " <BR/>at: ". $time." </div> "; 
} 

Directly to use, 10 pieces of PHP code, but also hesitate what, decisively collection