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Aug 29, 2024 pm 12:56 PM
php

PHP?? $_POST ? $_GET ????? ? ?? ???? ???, ?? ??? ???? ?? ?????? ??? ?? ? ?????. ?? ???? ?? ??? ??? ?? ?? "??: ???? ?? ???" ??? ???? ?? ????? ??? ???? ? ???? ?? ??? ??? "??: ???? ?? ??" ??? ? ????. “Notice: ???? ?? ???” ? “Notice: ???? ?? ???” ? ??? ??? ?? ??? ????? ?? ??? ???? ? ?? ???? ??? ? ???, ??? ??? ????? isset() ???? ??? ?????. PHP? ???? ??? ??? ???? ?? error_reporting ??? ~E_NOTICE? ?????? ?? ??? ???????.

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Notice: Undefined index:/Undefined variable:/Undefined offset

PHP?? ???? ?? ??? ??

PHP?? ???? ?? ???? ?? ??? ??? ????.

  • PHP?? ??? ???? ?? ?????? ??? ?? ? ???? $_POST ? $_GET ????? ? ?? ???? ????.
  • PHP?? ?? ??? ? ?? ???? ?? ??? ??? ??? "????: ???? ?? ???"?? ???? ???? ?? ????? ??? ?????.
  • ???? ?? ??? ??? "??: ???? ?? ??", "??: ???? ?? ???" ? "??: ???? ?? ???" ??? ? ????.
  • ???? ?? ??? ??? ?? ??? ????? ?? ??? ???? ? ?? ???? ??? ? ????.
  • ???? ?? ??? ??? ???? ?? PHP??? isset() ???? ??? ?????.
  • ???? ?? ??? ??? ???? ?? error_reporting ??? ~E_NOTICE? ?????? ?? ??? ???????.

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?? #1

? ?? ??? ???? ??? ?? ???? ??? ???? ?? ??? ??? ???? ???? ?? ??? ??? ???? PHP ????:

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<html>
<body>
<?php
#a variable called country is defined to store the input from the user through $_GET method
$country = $_GET['country'];
#a variable called capital is defined to store the input from the user through $_GET method
$capital = $_GET['capital'];
#displaying the input obtained by the user otherwise undefined index error is encountered
echo $country;
echo $capital;
?>
</body>
</html>

??:

PHP ???? ?? ???

? ??????? ???? $_GET ???? ?? ??? ??? ???? ?? country?? ??? ??????. ?? ?? $_GET ???? ?? ???? ??? ??? ???? ?? Capital??? ? ?? ??? ?????. ??? ???? ??? ??? ??? ?????. ???? ??? ???? ??? ??? ??? ?? ???? ?? ??? ??? ?????. ??? ?? ???? ?????.

?? #2

? ?? ??? ???? ??? ?? ???? ??? ???? ?? ??? ??? ???? ???? ?? ??? ??? ???? PHP ????:

??:

<html>
<body>
<?php
#a variable called model is defined to store the input from the user through $_GET method
$model = $_GET['car_model'];
#a variable called yearl is defined to store the input from the user through $_GET method
$year = $_GET['year_of_purchase'];
#displaying the input obtained by the user otherwise undefined index error is encountered
echo $model;
echo $year;
?>
</body>
</html>

??:

PHP ???? ?? ???

? ??????? ???? $_GET ???? ?? ??? ??? ???? ?? model??? ??? ??????. ?? ?? $_GET ???? ?? ???? ??? ??? ???? ?? year?? ? ?? ??? ?????. ??? ???? ??? ??? ??? ?????. ???? ??? ???? ??? ??? ??? ?? ???? ?? ??? ??? ?????. ??? ?? ???? ?????.

?? #3

? ?? ??? ???? ??? ?? ???? ??? ???? ?? ??? ??? ???? ???? ?? ??? ??? ???? PHP ????:

??:

<html>
<body>
<?php
#a variable called source is defined to store the input from the user through $_GET method
$source = $_GET['source'];
#a variable called destination is defined to store the input from the user through $_GET method
$destination = $_GET['destination'];
#displaying the input obtained by the user otherwise undefined index error is encountered
echo $source;
echo $destination;
?>
</body>
</html>

??:

PHP ???? ?? ???

? ??????? ???? $_GET ???? ?? ??? ??? ???? ?? source?? ??? ??????. ?? ?? $_GET ???? ?? ???? ??? ??? ???? ?? ????? ? ?? ??? ?????. ??? ???? ??? ??? ??? ?????. ???? ??? ???? ??? ??? ??? ?? ???? ?? ??? ??? ?????. ??? ?? ???? ?????.

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  • ???? ?? ?? ???? ????? ? ? PHP?? ???? ?? ???? ?? ???? ?? ??? ?? ???? ?? ??? ??? ? ????.
  • PHP?? ??? ???? ?? ??? ??? ????? ???? ?? ??? ??? ???? ??? ????.
  • ???? ?? ??? ??? isset() ???? ??? ???? ??? ? ????.
  • error_reporting ??? ~E_NOTICE? ?????? ?? ??? ?????? ???? ?? ??? ??? ??? ? ????.

? ??? PHP ???? ?? ???? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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? ?? ??? ????? ???? ??? ??????, ???? ?????? ????. ? ???? ?? ???? ?? ??? ?? ????. ???? ??? ???? ???? ??? ?? admin@php.cn?? ?????.

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Undresser.AI Undress

Undresser.AI Undress

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AI Clothes Remover

AI Clothes Remover

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