\'Unexpected T_ENCAPSED_AND_WHITESPACE\' Error in MySQL: How to Resolve Space and Quote Issues?

“unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING” Error: Understanding the Cause and Resolution

Your MySQL query is triggering the "unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING" error. This error typically occurs when there's a space or a double-quote character in the variable value that you're trying to insert.

In your case, the error points to the line:

$sqlupdate1 = "UPDATE table SET commodity_quantity=$qty WHERE user=$rows['user'] ";

Here's what you can do to resolve this issue:

1. Use single quotes for the variable values: Enclose the variable values with single quotes. This way, MySQL will treat them as strings and won't be confused by any spaces or double quotes within the values.

$sqlupdate1 = "UPDATE table SET commodity_quantity='$qty' WHERE user='".$rows['user']."' ";

2. Escape the single quotes within the variable values: If the variable value itself contains single quotes, you'll need to escape them by using a backslash character (). This will prevent MySQL from interpreting the single quotes as the end of the string.

$user_id = "James O'Brien";
$sqlupdate1 = "UPDATE table SET commodity_quantity='$qty' WHERE user='$user_id' ";

Once you've made these changes, your MySQL query should execute successfully without the "unexpected T_ENCAPSED_AND_WHITESPACE" error.

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