[PHP] - 创建函数别名
/** * * Function Name : * val2str * 参考:http://www.php.net/manual/en/function.create-function.php#103080 * * Description : * 将变量值变成php代码 * * Parameters : * $mixed[mixed] : 变量值 * * Returns : * [string]php代码 * * Demo : * $object = new stdClass; * $object->arg = 'object'; * echo val2str($object); * * $cls = new stdClass(); * $cls->key ='value'; * $array = (array)$cls; * echo val2str($array); * * $temp = array( * 'int' => 100, * 'double' => 3.14, * 'string' => 'string test', * 'array' => array('test21' => 'ok21', 'test22' => 'ok22'), * 'object' => (object)array('test31' => 'ok31', 'test32' => 'ok32'), * 'bool' => true, * 'null' => NULL, * ); * eval(sprintf('$test=%1$s;', val2str($temp))); * print_r($test); */ function val2str($mixed) { // 获取变量名 $var_name = ''; // 获取变量值 switch(gettype($mixed)) { case 'string': return sprintf('\'%1$s\'', $mixed);case 'object': case 'array': $isobject = false; if(is_object($mixed)) { $isobject = true; $mixed = get_object_vars($mixed); } $delimiter = ', '; $out = ''; foreach($mixed as $key => $value) { $fun = __FUNCTION__; $out .= sprintf('%1$s\'%2$s\' => %3$s', $delimiter, $key, $fun($value)); } if(!empty($out)) { // 删除前面的$delimiter $out = substr($out, strlen($delimiter)); } $out = $isobject ? sprintf('(object)array(%1$s)', $out) : sprintf('array(%1$s)', $out); return $out; case 'boolean': return $mixed ? 'true' : 'false'; case 'NULL': return 'NULL'; //case 'integer': //case 'double': //case 'resource': default : return $mixed; } } /** * * Function Name : * CreateFunctionAlias * 参考:http://www.php.net/manual/en/function.create-function.php#103080 * * Description : * 创建函数别名 * * Parameters : * $function_name[string] : 函数名(必须已存在) * $alias_name[string] : 新别名(必须不存在) * * Returns : * [bool]返回结果 * */ function CreateFunctionAlias($function_name, $alias_name) { if(function_exists($alias_name)) return false; $rf = new ReflectionFunction($function_name); $fproto = $alias_name.'('; $fcall = $function_name.'('; $need_comma = false; foreach($rf->getParameters() as $param) { if($need_comma) { $fproto .= ','; $fcall .= ','; } $fproto .= '$'.$param->getName(); $fcall .= '$'.$param->getName(); if($param->isOptional() && $param->isDefaultValueAvailable()) { $val = $param->getDefaultValue(); $fproto .= ' = '.val2str($val); } $need_comma = true; } $fproto .= ')'; $fcall .= ')'; $f = sprintf('function %1$s{return %2$s;}', $fproto, $fcall); eval($f); return true; } // 创建CreateFunctionAlias别名 if(!function_exists('function_alias')) { function function_alias($function_name, $alias_name) { return CreateFunctionAlias($function_name, $alias_name) ; } }
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