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.