如何在PHP中将Array分配给String？ [重复]

Question

This question already has an answer here:

• PHP parse/syntax errors; and how to solve them? 17 answers

I am trying to assign the contents of a 2D array to a string in PHP.

$sql="SELECT Order_Code FROM Order WHERE CUST_CODE = '$output['username']';";

I know the problem exists in how I'm writing the $output variable assignment.

The following line of code outputs the correct data from the variable:

echo $output['username'];  

The following error is being thrown:

Parse error: syntax error, unexpected '' (T_ENCAPSED_AND_WHITESPACE), expecting identifier (T_STRING) or variable (T_VARIABLE) or number (T_NUM_STRING)

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Answer 1

You need to concatenate this string as the multiple single quotes from accessing the array element are mixing up the string.

$sql="SELECT Order_Code FROM Order WHERE CUST_CODE = '" . $output['username'] ."';";