Creates EvChild object associated with the current event loop

# EvLoop::child

(PECL ev >= 0.2.0)

EvLoop::child — Creates EvChild object associated with the current event loop

### 说明

final public function EvLoop::child(
string `$pid` ,
string `$trace` ,
string `$callback` ,
string `$data` = ?,
string `$priority` = ?
): EvChild

Creates EvChild object associated with the current event loop.

### 参数

All parameters have the same meaning as for EvChild::__construct()

### 返回值

Returns EvChild object on success.

### 参见

- EvChild::__construct() - Constructs the EvChild watcher object

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