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<h2 class="title">Result callbacks</h2>
<p class="para">
Result <span class="type"><span class="type callbacks">callbacks</span></span> are invoked by
<span class="methodname"><a href="memcached.getdelayed.html" class="methodname">Memcached::getDelayed()</a></span> or
<span class="methodname"><a href="memcached.getdelayedbykey.html" class="methodname">Memcached::getDelayedBykey()</a></span> methods for each item in
the result set. The callback is passed the Memcached object and the array
with the item information. The callback does not have to return anything.
</p>
<div class="example" id="example-4426">
<p><strong>Example #1 Result callback example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$m </span><span style="color: #007700">= new </span><span style="color: #0000BB">Memcached</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">addServer</span><span style="color: #007700">(</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">, </span><span style="color: #0000BB">11211</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$items </span><span style="color: #007700">= array(<br /> </span><span style="color: #DD0000">'key1' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'value1'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'key2' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'value2'</span><span style="color: #007700">,<br /> </span><span style="color: #DD0000">'key3' </span><span style="color: #007700">=> </span><span style="color: #DD0000">'value3'<br /></span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">setMulti</span><span style="color: #007700">(</span><span style="color: #0000BB">$items</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$m</span><span style="color: #007700">-></span><span style="color: #0000BB">getDelayed</span><span style="color: #007700">(array(</span><span style="color: #DD0000">'key1'</span><span style="color: #007700">, </span><span style="color: #DD0000">'key3'</span><span style="color: #007700">), </span><span style="color: #0000BB">true</span><span style="color: #007700">, </span><span style="color: #DD0000">'result_cb'</span><span style="color: #007700">);<br /><br />function </span><span style="color: #0000BB">result_cb</span><span style="color: #007700">(</span><span style="color: #0000BB">$memc</span><span style="color: #007700">, </span><span style="color: #0000BB">$item</span><span style="color: #007700">)<br />{<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$item</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
array(3) {
["key"]=>
string(4) "key1"
["value"]=>
string(6) "value1"
["cas"]=>
float(49)
}
array(3) {
["key"]=>
string(4) "key3"
["value"]=>
string(6) "value3"
["cas"]=>
float(50)
}
</pre></div>
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