> For the complete documentation index, see [llms.txt](https://gabb.gitbook.io/easyphp/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gabb.gitbook.io/easyphp/php-functions/functions.md).

# Functions

## String

```yaml
parse_str()
isset()
define()
http_build_query()
strlen()
str_word_count()
strrev()
strpos()
str_replace()
```

## Sessions

```
session_start()
session_abort()
session_reset()
session_destroy()
$_SESSION[]
```

## Numbers

```
is_float()
is_numeric()
pi()
min()
max()
abs()
sqrt()
round()
rand()
```

## Array and Objects

```
array()
[]
count()
in_array()
sort()
rsort()
asort()
arsort()
ksort()
krsort()
```

## JSON

```
json_encode()
json_decode()
```

## Encryption

```
base64_encode()
base64_decode()
```

## Global Variables

```
$_COOKIE[]
$_POST[]
$_GLOBALS[]
$_SERVER[]
get()
querystring()
```

## File control

```
file_get_contents()
file_put_contents()
```

## Others

```
die()
setcookie()
echo()
print()
print_r()
header()
unset()
```