heibai2006/web3.php
1
0
Fork 0
Code Issues Pull Requests Projects Releases 2 Wiki Activity

README.md

Browse Source
This commit is contained in:
sc0Vu 2018-01-18 14:33:48 +08:00
parent bac5cc8c31
commit cf9ac42696
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
README.md
View File

@ -176,6 +176,23 @@ $contract->bytecode($bytecode)->estimateGas($params, $callback);
$contract->bytecode($bytecode)->estimateGas($functionName, $params, $callback); $contract->bytecode($bytecode)->estimateGas($functionName, $params, $callback);
``` ```
# Assign value to outside scope(from callback scope to outside scope)
Due to callback is not like javascript callback,
if we need to assign value to outside scope,
we need to assign reference to callback.
```
$newAccount = '';
$web3->personal->newAccount('123456', function ($err, $account) use (&$newAccount) {
if ($err !== null) {
echo 'Error: ' . $err->getMessage();
return;
}
$newAccount = $account;
echo 'New account: ' . $account . PHP_EOL;
});
```
# Examples # Examples
To run examples, you need to run ethereum blockchain local (testrpc). To run examples, you need to run ethereum blockchain local (testrpc).