39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
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---
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title: Conditionals
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---
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## Conditionals
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Conditionals in PHP are written using the `if`, `elseif`, `else` syntax. Using conditionals allows you to perform different actions depending on different inputs and values provided to a page at run time. In PHP conditionals are often referred to as control structures.
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### If
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```PHP
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<?php
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if ($_GET['name'] = "freecodecamp"){
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echo "You viewed the freeCodeCamp Page!";
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}
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```
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### Elseif
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```PHP
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<?php
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if ($_GET['name'] = "freecodecamp"){
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echo "You viewed the freeCodeCamp Page!";
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} elseif ($_GET['name'] = "freecodecampguide"){
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echo "You viewed the freeCodeCamp Guide Page!";
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}
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```
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### Else
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```PHP
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<?php
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if ($_GET['name'] = "freecodecamp"){
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echo "You viewed the freeCodeCamp Page!";
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} elseif ($_GET['name'] = "freecodecampguide"){
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echo "You viewed the freeCodeCamp Guide Page!";
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} else {
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echo "You viewed a page that does not exist yet!";
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}
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```
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### Note
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In cases where you have a lot of possible conditions you may want to use a <a href="/php/switch">Switch Statement</a>.
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#### More Information:
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* <a href="https://secure.php.net/manual/en/control-structures.elseif.php" rel="nofollow">php.net control structures manual</a>
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