Why I get a mysqli_num_rows() error? I've followed the example at the docs
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Reference - What does this error mean in PHP?
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PHP: mysql_fetch_array() expects parameter 1 to be resource, boolean given
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mysqli error: [1093: ...]
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Why isn't the second mysqli_fetch_assoc executing?
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mysqli_query() expects parameter 1 to be mysqli, object given
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Warning: mysqli_query() expects parameter 1 to be mysqli, null given in
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Call to a member function bind_param() on a non-object MySQLi
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Column name or number of supplied values does not match table definition. What shoul I do?
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mysql_fetch_array does not retrieve all rows
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Turning query errors to Exceptions in MySQLi
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MySQL - count total number of rows in php
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mysqli_stmt::bind_param(): Number of elements in type definition string doesn't match number of bind variables
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Warning: mysql_fetch_* expects parameter 1 to be resource, boolean given error
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Using wildcards in prepared statement - MySQLi
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Why does mysqli num_rows always return 0?
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How to change mysql to mysqli?
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Understanding php "Out of memory" error