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POStatic Variables in Function after while loop
 

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    <p>I have a database abstraction layer in a CMS, and one of the functions is a mysql_fetch_assoc wrapper which includes the connection, query and result logic all in one.</p> <pre><code>_select_row($in_table, $in_what = '*', $in_where = '', $in_arr_params = array(), $in_flags) { // Generates a unique enough name based on query contents. $hash = md5($in_table.$in_what.implode((array)$in_arr_params).$in_flags); if (!isset($_STATIC)) { static $_STATIC = array(); } if (isset($_STATIC[$hash]) { return mysql_fetch_assoc($_STATIC[$hash]); } // *snip* SQL logic here, connect -&gt; query -&gt; result *snip* $_STATIC[$hash] = $result; return mysql_fetch_assoc($_STATIC[$hash]); } </code></pre> <p>It maintains a static variable so when being used in loops, it can iterate like a standard fetch_assoc call.</p> <pre><code>while (_select_row('mytable')) // Loops all rows { // Do Stuff } </code></pre> <p>The only problem I'm having is a corner case: if the programmer tries to make the same query again later in the script, it will continue the iteration instead of starting again. I could create a reset function of some sort, or work with a selector function and a results function, but I was hoping for a more elegant solution in which the function would "know" when it was not being called in the same loop, and dump the results. Also, just for efficiency sake I'd like it to dump results when they are done.</p> <p>Any ideas, or is switching to a select->result model really the only way around this?</p>
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    1. UScwallenpoole
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      1. VTUpMod
    1. COPass in a parameter to say "do not used cached results"?
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      1. USMarc B
    2. CO`if (!isset($_STATIC))` kinda defeats the purpose of static variables. You can skip this.
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      1. USLinus Kleen
 

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