php keys of array

<?php
$array = array(
    'fruit1' => 'apple',
    'fruit2' => 'orange',
    'fruit3' => 'grape',
    'fruit4' => 'apple',
    'fruit5' => 'apple');

$keys = array_keys($array);		// return array
$values = array_values($array);	// return array
?>

3
1
Phoenix Logan 186120 points

                                    $array = array(0 =&gt; 100, &quot;cor&quot; =&gt; &quot;vermelho&quot;);
print_r(array_keys($array));

$array = array(&quot;azul&quot;, &quot;vermelho&quot;, &quot;verde&quot;, &quot;azul&quot;, &quot;azul&quot;);
print_r(array_keys($array, &quot;azul&quot;));

$array = array(&quot;cor&quot;     =&gt; array(&quot;azul&quot;, &quot;vermelho&quot;, &quot;verde&quot;),
               &quot;tamanho&quot; =&gt; array(&quot;pequeno&quot;, &quot;medio&quot;, &quot;grande&quot;));
print_r(array_keys($array));

3 (1 Votes)
0
3.83
6
Bippy 8155 points

                                    
&lt;?php
$array&nbsp;=&nbsp;array(
&nbsp;&nbsp;&nbsp;&nbsp;'fruit1'&nbsp;=&gt;&nbsp;'apple',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit2'&nbsp;=&gt;&nbsp;'orange',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit3'&nbsp;=&gt;&nbsp;'grape',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit4'&nbsp;=&gt;&nbsp;'apple',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit5'&nbsp;=&gt;&nbsp;'apple');

//&nbsp;this&nbsp;cycle&nbsp;echoes&nbsp;all&nbsp;associative&nbsp;array
//&nbsp;key&nbsp;where&nbsp;value&nbsp;equals&nbsp;&quot;apple&quot;
for($i = 0; $i&lt; sizeof($array);$i++){
if&nbsp;(key($array[$i])&nbsp;==&nbsp;'apple')&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;key($array).'&lt;br&nbsp;/&gt;';
&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;//next($array);
}
?&gt;

3.83 (6 Votes)
0
0
6
Awgiedawgie 440220 points

                                    &lt;?php
$age=array(&quot;Peter&quot;=&gt;&quot;35&quot;,&quot;Ben&quot;=&gt;&quot;37&quot;,&quot;Joe&quot;=&gt;&quot;43&quot;);
foreach($age as $x=&gt;$x_value)
  {
  echo &quot;Key=&quot; . $x . &quot;, Value=&quot; . $x_value;
  echo &quot;&lt;br&gt;&quot;;
  }
?&gt;

0
0
0
0
Phoenix Logan 186120 points

                                    
&lt;?php
$array&nbsp;=&nbsp;array(
&nbsp;&nbsp;&nbsp;&nbsp;'fruit1'&nbsp;=&gt;&nbsp;'apple',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit2'&nbsp;=&gt;&nbsp;'orange',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit3'&nbsp;=&gt;&nbsp;'grape',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit4'&nbsp;=&gt;&nbsp;'apple',
&nbsp;&nbsp;&nbsp;&nbsp;'fruit5'&nbsp;=&gt;&nbsp;'apple');

//&nbsp;this&nbsp;cycle&nbsp;echoes&nbsp;all&nbsp;associative&nbsp;array
//&nbsp;key&nbsp;where&nbsp;value&nbsp;equals&nbsp;&quot;apple&quot;
while&nbsp;($fruit_name&nbsp;=&nbsp;current($array))&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;if&nbsp;($fruit_name&nbsp;==&nbsp;'apple')&nbsp;{
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;key($array).'&lt;br&nbsp;/&gt;';
&nbsp;&nbsp;&nbsp;&nbsp;}
&nbsp;&nbsp;&nbsp;&nbsp;next($array);
}
?&gt;

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