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Strict Standards: Declaration of Walker_Page::end_lvl() should be compatible with Walker::end_lvl($output) in /blog/wp-includes/classes.php on line 534

Strict Standards: Declaration of Walker_Page::start_el() should be compatible with Walker::start_el($output) in /blog/wp-includes/classes.php on line 534

Strict Standards: Declaration of Walker_Page::end_el() should be compatible with Walker::end_el($output) in /blog/wp-includes/classes.php on line 534

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Strict Standards: Declaration of Walker_Category::end_lvl() should be compatible with Walker::end_lvl($output) in /blog/wp-includes/classes.php on line 649

Strict Standards: Declaration of Walker_Category::start_el() should be compatible with Walker::start_el($output) in /blog/wp-includes/classes.php on line 649

Strict Standards: Declaration of Walker_Category::end_el() should be compatible with Walker::end_el($output) in /blog/wp-includes/classes.php on line 649

Strict Standards: Declaration of Walker_CategoryDropdown::start_el() should be compatible with Walker::start_el($output) in /blog/wp-includes/classes.php on line 674

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[PHP] Jak pobrać z formularza dane umieszczone w zmiennej tablicowej » Porady PHP » egrafik.pl
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Strict Standards: Resource ID#250 used as offset, casting to integer (250) in /forum2/db/mysql4.php on line 223

Strict Standards: Resource ID#250 used as offset, casting to integer (250) in /forum2/db/mysql4.php on line 224
[PHP] Jak pobrać z formularza dane umieszczone w zmiennej tablicowej
Porady PHP | 5 maj 2008 | Wizyt: 102887

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Strict Standards: Only variables should be assigned by reference in /blog/wp-includes/post.php on line 114

Deprecated: Function eregi() is deprecated in /blog/wp-content/plugins/tpbc.php on line 96

Tworząc rozbudowany formularz każdemu polu tego formularza należy nadać nazwę. Można to zrobić wykorzystując różne nazwy zmienych różnicujących o które pole chodzi, ale można także użyć do tego celu zmienną tablicową. Jest to uproszczony sposób, gdyż ułatwia odwołanie się do zawartości różnych pól w formularzu.

Przykład:

Kod: html4strict

<form action="index.php" method="post">
  <input name=pole[] type="text" /><br />
  <input name=pole[] type="text" /><br />
  <input name=pole[] type="text" /><br />
  <input value="wyślij" type="submit" />
</form>

Kod: php

<?php
// odbranie informacji ze zmiennej tablicowej $pole[]
echo $_POST["pole"][0]."<br />";
echo $_POST["pole"][1]."<br />";
echo $_POST["pole"][2]."<br />";

// odbranie informacji ze zmiennej tablicowej $pole[] z wykorzystaniem pętli
for($i=0;$i<count($_POST["pole"]);$i++) {
  echo $_POST["pole"][$i]."<br />";
}
?>
 

W powyższym przykładzie odwołanie się do zmiennych nazywających pola formularza odbywa się przez pobranie ich ze zmiennej tablicowej $pole[] poprzez podanie indexu tablicy - 0,1,2… Wykorzystując fakt, że indexy numerowane są kolejnymi cyframi, można zastosować pętlę pobierającą z tablicy dane.

Autor: Adam Suchowski

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