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POMissing PHP array grandchild
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  1. POMissing PHP array grandchild
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    copied!<p>I have some code for building a HTML table from PHP.</p> <pre><code>&lt;?php function new_table($class) { $table = array('class' =&gt; $class, 'tr' =&gt; array()); return $table; } function new_tr(&amp;$table, $class) { $tr = array('class' =&gt; $class, 'td' =&gt; array()); $table['tr'][] = $tr; return $tr; } function new_td(&amp;$tr, $class, $content) { $td = array('class' =&gt; $class, 'content' =&gt; $content); $tr['td'][] = $td; return $td; } ?&gt; </code></pre> <p>Usage:</p> <pre><code> $table = new_table('admin whoami'); $tr = new_tr($table, 'head'); new_td($tr, 'field', 'Field'); new_td($tr, 'value', 'Value'); $tr = new_tr($table, 'body'); new_td($tr, 'field', 'Name'); new_td($tr, 'value', $my_name); echo '--- tr ---'.chr(10); var_dump($tr); echo '--- table ---'.chr(10); var_dump($table); </code></pre> <p>And the result:</p> <pre><code>--- tr --- array(2) { ["class"]=&gt; string(4) "body" ["td"]=&gt; array(2) { [0]=&gt; array(2) { ["class"]=&gt; string(5) "field" ["content"]=&gt; string(4) "Name" } [1]=&gt; array(2) { ["class"]=&gt; string(5) "value" ["content"]=&gt; string(5) "user0" } } } --- table --- array(2) { ["class"]=&gt; string(12) "admin whoami" ["tr"]=&gt; array(2) { [0]=&gt; array(2) { ["class"]=&gt; string(4) "head" ["td"]=&gt; array(0) { } } [1]=&gt; array(2) { ["class"]=&gt; string(4) "body" ["td"]=&gt; array(0) { } } } } </code></pre> <p>If you note, var_dump($tr) correctly dumps the tr, including child td elements.</p> <p>However, var_dump($table), while correctly var_dumping the tr elements, does not var_dump the grandchild td elements -- note the empty array ["td"]=> array(0) { }</p> <p>Do you know why this might be happening?</p> <p>Does it have something to do with the returned $tr element being a copy, not a reference, of a $table['tr'] element? In which case, why does adding a tr to the table work, when adding a td to a tr doesn't?</p> <p>Thanks!</p>
 

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