How can the issue of ambiguous column names in PHP queries be resolved when querying multiple tables?

When querying multiple tables in PHP, ambiguous column names can arise when the same column name exists in more than one table. To resolve this issue, you can use table aliases in your SQL query to specify which table's column you want to select. By prefixing the column names with the table alias, you can differentiate between the columns with the same name. 

<?php
// Example SQL query with table aliases to resolve ambiguous column names
$query = "SELECT t1.column_name AS t1_column, t2.column_name AS t2_column
          FROM table1 t1
          JOIN table2 t2 ON t1.id = t2.id";
?>

Keywords

SQL JOIN aliases table prefixes column ambiguity

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