My PHP Learning notes: PHP Universal collection Program

The basic steps for building a PHP collection program are:

What is a collection program? Get Remote Data (text, pictures, pictures) and quickly save to a local or specified address.

such as weather Forecast (thief procedure):

Remote access-"Replace content-" show to users

such as real-time updates of news (capture content):

Remote access--"Extract content-" Classified storage-"Read content---" Display content

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Design PHP to collect inbound UML

List Regular:

The terminal is regular:

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file_get_contents () Get remote page content

Preg_match_all () match list

Preg_match () matching terminal

Preg_replace (): Filter terminal

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Create a new list file: lb.php

echo $con =file_get_cotents ($_get[url]);

$preg = "#

Pg_match_all ($preg, $conn, $arr);

foreach ($arr [1] as $id = + $v) {

echo $v. " "Arr[2][$id]." <br> ";

}

New VI. PHP Get title

vi.php

$con =file_get_contents ();

$preg = "<title> (. *) </title>/ius";//case insensitive, prevent greedy match, prevent line break

Echo ZZ ($preg, $con);

Function zz ($preg, $con, $num =1) {

Preg_match ($preg, $con, $arr);

return $arr [$num];

}

echo $arr [1];//get title

echo "<a href=vi.php?url=". $v. " > ". arr[2][$id]." <br> ";

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PHP100:83: Acquisition Program

lb.php

<?php

if ($_get[id]) {

$con =file_get_cotents ($_get[url].$_get[id]. " sHTML ");

$preg = "/

Perg_match_all ($preg, $conn, $arr);

foreach ($arr [1] as $id = + $v) {

echo $v. " "Arr[2][$id]." <br> ";

}

$_get[id]++;

echo "<script>location.href= ' lb.php?id= '. $_get[id]." </script> ";

}

?>

Http://www.xinhuanet.com/finance/tzxx.htm

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Operation Steps:

1. Create a new Database Caiji,tep_url table, id,title,content,11, 100,150

2. Create a new conn.php, insert the statement can be inserted by phpMyAdmin a statement simple to get

3. Create a new vi.php

4. Get the next article in a single storage.

List of temporary paths:

Perfect my inbound table.

What if you delete one of the ID values? Removed the 9th article!

Add a statement

$sql 2= "SELECT * from Tmp_url where id> ' $gid ' ORDER by ID ASC Limit 1

This article is from "Pico Zhang" blog, please make sure to keep this source http://raojiadashaoye.blog.51cto.com/7167615/1426141