PEAR_Dependency::checkProgram()
PEAR_Dependency::checkProgram() -- Check external program
概要
require_once 'PEAR/Dependency.php'; |
mixed PEAR_Dependency::checkProgram (mixed &$errmsg, string $program)
説明
External program check method.
Looks for executable files in directories
listed in the PATH environment variable.
パラメータ
- mixed
&$errmsg
this variable will contains an error message, if
check fail
- string
$program
which program to look for
返り値
mixed -
FALSE if dependency could be resolved
successfully(!); or an
PEAR_DEPENDENCY_* constant
in case of unresolved dependency.
注意
この関数は、スタティックにコールする
ことはできません。