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See Release Notes

  • Bug fixes for general core bugs in 4.0.x will end 8 May 2023 (12 months).
  • Bug fixes for security issues in 4.0.x will end 13 November 2023 (18 months).
  • PHP version: minimum PHP 7.3.0 Note: the minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is also supported.
/filter/tex/ -> latex.php (source)

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Defines 2 classes

latex:: (2 methods):
  __construct()
  latex()

name:: (4 methods):
  supported()
  construct_latex_document()
  execute()
  render()


Class: latex  - X-Ref

__construct()   X-Ref
Constructor - create temporary directories and build paths to
external 'helper' binaries.
Other platforms could/should be added


latex()   X-Ref
Old syntax of class constructor. Deprecated in PHP7.


Class: name  - X-Ref

supported()   X-Ref
Accessor function for support_platform field.

return: boolean value of supported_platform

construct_latex_document($formula, $fontsize = 12)   X-Ref
Turn the bit of TeX into a valid latex document

return: string the latex document
param: string $forumula the TeX formula
param: int $fontsize the font size

execute( $command, $log=null )   X-Ref
execute an external command, with optional logging

return: return code from execution of command
param: string $command command to execute
param: file $log valid open file handle - log info will be written to this file

render( $formula, $filename, $fontsize=12, $density=240, $background='', $log=null )   X-Ref
Render TeX string into gif/png

return: bool true if successful
param: string $formula TeX formula
param: string $filename filename for output (including extension)
param: int $fontsize font size
param: int $density density value for .ps to .gif/.png conversion
param: string $background background color (e.g, #FFFFFF).
param: file $log valid open file handle for optional logging (debugging only)