Array,Array Function,Get Method,Post Method
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An array is a special variable that can hold multiple values. There are two main types of arrays: numeric and associative. Numeric arrays use integers as indexes and associate arrays use named keys. Functions like in_array(), is_array(), implode(), and explode() allow you to check/manipulate arrays. The GET and POST methods are used to submit form data, with GET appending values to the URL and POST sending values via HTTP headers.
![What is array?
•An array is a special variable, which can hold more
than one value at a time.
Syntax:
array(“string”,”string”,”string”);
Example:
$a=array(“hello”,”world”);
echo $a[0];
echo $a[1];](https://image.slidesharecdn.com/arrayvariable-151026045511-lva1-app6892/85/Array-Array-Function-Get-Method-Post-Method-1-320.jpg)
![• Numeric array is used for numeric value.
• The index can be assigned automatically
(index always starts at 0), like this:
Syntax:
$array[0];
$array[1];](https://image.slidesharecdn.com/arrayvariable-151026045511-lva1-app6892/85/Array-Array-Function-Get-Method-Post-Method-3-320.jpg)
![• Associative arrays are arrays that use named keys that you
assign to them.
Syntax:
array(“practical"=>“value", “name keys"=>“value",
“name keys"=>“value");
Example
$a=array(“practical”=>”hello”,”practical1”=>”world”);
echo $a[“practical”];
echo $a[“practical1”];](https://image.slidesharecdn.com/arrayvariable-151026045511-lva1-app6892/85/Array-Array-Function-Get-Method-Post-Method-4-320.jpg)
![Explode is used for convert string to array.
Syntax:
explode(“first parameter”,variablename);
<?Php
$d="hello how are you";
$e=explode(" ",$d);
Echo $e[0];
Echo $e[1];
?>](https://image.slidesharecdn.com/arrayvariable-151026045511-lva1-app6892/85/Array-Array-Function-Get-Method-Post-Method-11-320.jpg)
Array,Array Function,Get Method,Post Method
- 1. What is array? •An array is a special variable, which can hold more than one value at a time. Syntax: array(“string”,”string”,”string”); Example: $a=array(“hello”,”world”); echo $a[0]; echo $a[1];
- 3. • Numeric array is used for numeric value. • The index can be assigned automatically (index always starts at 0), like this: Syntax: $array[0]; $array[1];
- 4. • Associative arrays are arrays that use named keys that you assign to them. Syntax: array(“practical"=>“value", “name keys"=>“value", “name keys"=>“value"); Example $a=array(“practical”=>”hello”,”practical1”=>”world”); echo $a[“practical”]; echo $a[“practical1”];
- 6. In_array is used for check the string is available or not in our array. Syntax. in_array(string name,variable name);
- 8. Is_array is used for check our array is array or not. Syntax: is_array(variable name);
- 9. <?php $b="hello world"; if(is_array($b)) { echo "true"."<br>"; } else { echo "false"."<br>"; } ?>
- 10. Implode is used for convert array to string. Syntax: implode(variable name); Example: <?php $c=array("hello","how","are","you"); echo implode(" ",$c)."<br>"; ?>
- 11. Explode is used for convert string to array. Syntax: explode(“first parameter”,variablename); <?Php $d="hello how are you"; $e=explode(" ",$d); Echo $e[0]; Echo $e[1]; ?>
- 12. Get : used for get a value from form. <form action=“” method="GET"> Name: <input type="text" name="name" /> Age: <input type="text" name="age" /> <input type="submit" /> </form> Output: http://www.test.com/index.html?name1=valu e1&name2=value2
- 13. Post : used for get a value from form. <form action=“” method=“post"> Name: <input type="text" name="name" /> Age: <input type="text" name="age" /> <input type="submit" /> </form> Output: http://www.test.com/index.html