PEAR_Dependency::checkProgram

PEAR_Dependency::checkProgram() -- Check external program

Synopsis

      require_once 'PEAR/Dependency.php';

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

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

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

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

This function can not be called statically.