This function calculates and returns the bounding box in pixels for a TrueType text.
The string to be measured.
The font size in pixels.
The name of the TrueType font file. (Can also be a URL.) Depending on which version of the GD library that PHP is using, it may attempt to search for files that do not begin with a leading '/' by appending '.ttf' to the filename and searching along a library-defined font path.
Angle in degrees in which text will be measured.
|0||lower left corner, X position|
|1||lower left corner, Y position|
|2||lower right corner, X position|
|3||lower right corner, Y position|
|4||upper right corner, X position|
|5||upper right corner, Y position|
|6||upper left corner, X position|
|7||upper left corner, Y position|
This function requires both the GD library and the FreeType library.
See also imagettftext().