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.