Return the LDAP error message of the last LDAP command

# ldap_error

(PHP 4, PHP 5, PHP 7, PHP 8)

ldap_error — Return the LDAP error message of the last LDAP command

### 说明

function ldap_error(LDAP\Connection `$ldap`): string

Returns the string error message explaining the error generated by the last LDAP command for the given `ldap`. While LDAP errno numbers are standardized, different libraries return different or even localized textual error messages. Never check for a specific error message text, but always use an error number to check.

Unless you lower your warning level in your php.ini sufficiently or prefix your LDAP commands with `@` (at) characters to suppress warning output, the errors generated will also show up in your HTML output.

### 参数

`ldap`

  通过 ldap_connect() 返回的 LDAP\Connection 实例。

### 返回值

Returns string error message.

### 更新日志

版本 | 说明
--- | ---
8.1.0 | 现在 `ldap` 参数接受 LDAP\Connection 实例，之前接受有效的 `ldap link` resource。

### 参见

- ldap_err2str() - Convert LDAP error number into string error message
- ldap_errno() - Return the LDAP error number of the last LDAP command

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