PEAR_Dependency::checkProgram

PEAR_Dependency::checkProgram() – Check external program

Synopsis

require_once 'PEAR/Dependency.php';

mixed PEAR_Dependency::checkProgram ( mixed &$errmsg , string $program )

Description

External program check method. Looks for executable files in directories listed in the PATH environment variable.

Parameter

mixed &$errmsg: this variable will contains an error message, if check fail

string $program: which program to look for

Return value

mixed - FALSE if dependency could be resolved successfully(!); or an PEAR_DEPENDENCY_* constant in case of unresolved dependency.

Note

This function can not be called statically.