PHP generated short URLs of 3 methods code instances, PHP generated 3 instances _php tutorial

PHP generates a short URL of 3 ways to code instances, PHP generated 3 instances of

Short URL service, may be a lot of friends are no longer unfamiliar, now most of the microblogging, mobile email reminders and other places already have a lot of application patterns, and occupy a certain market. It is estimated that many friends are using it now. After looking at Sina's short connection service, we found that there are 6 main strings.

Too many algorithmic things, there is no need to explore too much, the main or implementation, the following is the code of three ways:

<?php//Pure random generation method function random ($length, $pool = ') {$random = ';       if (empty ($pool)) {$pool = ' abcdefghkmnpqrstuvwxyz ';     $pool. = ' 23456789 ';      } srand (Double) microtime () *1000000);     for ($i = 0; $i < $length; $i + +) {$random. = substr ($pool, (rand ()% (strlen ($pool))), 1);   } return $random;   } $a =random (6);p rint_r ($a); Enumeration Generation method function Shorturl ($input) {$base = Array ("0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "B", "C" , "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "s", "T", "U", "V", "w", "X", "Y", "Z", "A "," B "," C "," D "," E "," F "," G "," H "," I "," J "," K "," L "," M "," N "," O "," P "," Q "," R "," S "," T "," U "," V "," W "," X ","   Y "," Z ");  $hex = MD5 ($input);  $hexLen = strlen ($hex);  $subHexLen = $hexLen/8;   $output = Array ();   for ($i = 0; $i < $subHexLen; $i + +) {$subHex = substr ($hex, $i * 8, 8);   $int = 0X3FFFFFFF & (1 * (' 0x '. $subHex)); $out = ";    for ($j = 0; $j < 6; $j + +) {$val = 0x0000001F & $int;    $out. = $base 32[$val];   $int = $int >> 5;  } $output [] = $out; } return $output;   } $a =shorturl ("http://www.bkjia.com");p Rint_r ($a);//62-bit generation method function Base62 ($x) {$show = ';  while ($x > 0) {$s = $x% 62;        if ($s >) {$s = Chr ($s +61);  } elseif ($s > 9 && $s <=35) {$s = Chr ($s + 55);   } $show. = $s;  $x = Floor ($x/62);    } return $show;  } function Urlshort ($url) {$url = CRC32 ($url);  $result = sprintf ("%u", $url);   Return base62 ($result);  } Echo Urlshort ("http://www.bkjia.com/"); ?>

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Content Description:

PHP code generation Tool, a MySQL-based database that runs on a Windows platform, automatically generates PHP scripts
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queries, additions, and deletions. With it you can get the full PHP code in just a few steps. Generate code that's clear and understandable,
It is convenient for developers to develop on the basis of two times. Contains the keygen.

English Description:

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PHP generate file code, help to look,

your foreach {} should enclose the contents of the following
correct
$con =array (Array (' News title ', ' news content '), Array (' News title 2 ', ' news content 2 ');

foreach ($con as $id + $val) {
$title = $val [0];
$content = $val [1];
$path = $id. HTM ';
$fp =fopen ("tmp.htm", "R"),//read-only open template
$str =fread ($fp, FileSize ("tmp.htm")),//Read the contents of the template
$str =str_replace ("{ Title} ", $title, $STR);
$str =str_replace ("{content}", $content, $STR);//replace Content
Fclose ($fp);

$handle =fopen ($path, "w"),//write Open News path
Fwrite ($handle, $STR);//write the contents of the previous replacement into the generated HTML file
fclose ($handle);
echo "Build Success";
}
 

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