substring (Extract a section of text)
See also: length (Textlänge)
The $substring() function extracts a part of the transferred text. This section is defined by specifying a start and end index.
Syntax
$substring(text,startIndex[,endIndex])
Parameter
|
Name |
Description |
|
text |
Any text |
|
startIndex |
The index of the character where the extract starts. The first character has the index 0. |
|
endIndex |
The index of the character where the section ends. The character with this index is not itself included. If this parameter is not specified, the section is automatically formed to the end of the text. |
Return value
The extracted part of the transferred text.
Examples
|
Syntax |
Result |
|
$substring(Hello small world,6,12) |
small |
|
$substring(Hello small world,6) |
small world |