The reason why PHP calls Oracle stored procedure is not all variables bound.

Today I discovered that such an error always occurs when calling Oracle stored procedures using PHP.

ORA-01008: not all variables bound

After struggling for a long time, I found that the variable name was written wrong.

<?php
$conn = oci_connect(&#39;SCOTT&#39;,&#39;TIGER&#39;) or die;// 建立连接 
if (!$conn) { 
$e = oci_error(); 
print htmlentities($e[&#39;message&#39;]); 
exit; 
} 
$sql = &#39;BEGIN pack_gt_calc.Pro_gt_Confirm(:year, :week, :errno, :errmsg); END;&#39;; // 查询语句 
$stid = oci_parse($conn, $sql); // 配置SQL语句，准备执行 
if (!$stid) { 
$e = oci_error($conn); 
print htmlentities($e[&#39;message&#39;]); 
exit; 
}
//  Bind the input parameter
oci_bind_by_name($stid,&#39;:year&#39;,$year,32);
// Bind the input parameter
oci_bind_by_name($stid,&#39;:week&#39;,$week,32);
// Bind the output parameter
oci_bind_by_name($stid,&#39;:errno&#39;,$error,32);
// Bind the output parameter，变量名 ermsg 写错了
oci_bind_by_name($stid,&#39;:ermsg&#39;,$errmsg,64);
// Assign a value to the input 
$year = &#39;2016&#39;;
$week = &#39;4&#39;;
$r = oci_execute($stid); // 执行SQL。OCI_DEFAULT表示不要自动commit 
if(!$r) { 
$e = oci_error($stid); 
echo htmlentities($e[&#39;message&#39;]); 
exit; 
} 
echo "errmsg is : $error<br>";
echo "errmsg is : $errmsg<br>";
oci_close($conn); 
?>