Multidimension Array Search Problem

[virginiamonkeys]

I have this code trying to search each layer for a specific string:

$found = array();

if(is_array($newlist)){
    foreach ($newlist as $key => $value){
            echo $key.'<br />';
        if(is_array($newlist[$key])){
        foreach ($newlist[$key] as $key => $value){
            echo '&nbsp;&nbsp;'.$value.'<br />';
            $found[$key] = array_search('o', $value);
            echo '&nbsp;&nbsp;'.$found[$key].'<br />';
            }
        }
    }
} 

I put in the echo $key and $value to see if it's opening each layer, which it is. But it's printing off blanks at the echo $found[$key]. I've tried a few different variations. I put in the letter o as a search term just to see if it's working.

[virginiamonkeys]

Trying something slightly different, but I keep getting a blank screen:

if(is_array($newlist)){
    foreach ($newlist as $key => $value){
            echo $key.'<br />';
        if(is_array($newlist[$key])){
        foreach ($newlist[$key] as $key => $value){
            echo '&nbsp;&nbsp;'.$value.'<br />';
            if (array_search('o', $value) = true){
            echo '&nbsp;&nbsp;TRUE<br />';
                } else {
            echo '&nbsp;&nbsp;FALSE<br />';
                }    
            }
        }
    }
} 

The blank screen stops if I comment out the following. if (array_search('o', $value) = true){

[virginiamonkeys]

I put the double == and it at least doesn't blank screen on me, but everything returns FALSE:

if(is_array($newlist)){
    foreach ($newlist as $key => $value){
            echo $key.'<br />';
        if(is_array($newlist[$key])){
        foreach ($newlist[$key] as $key => $value){
            echo '&nbsp;&nbsp;'.$value.'<br />';
            if (array_search('o', $value) == true){
            echo '&nbsp;&nbsp;TRUE<br />';
                } else {
            echo '&nbsp;&nbsp;FALSE<br />';
                }    
            }
        }
    }
} 

[virginiamonkeys]

I tried "in_array" and it still flags everything as false:

if(is_array($newlist)){
    foreach ($newlist as $key => $value){
            echo $key.'<br />';
        if(is_array($newlist[$key])){
        foreach ($newlist[$key] as $key => $value){
            echo '&nbsp;&nbsp;'.$value.'<br />';
            if (in_array("o",$value)){
            echo '&nbsp;&nbsp;TRUE<br />';
                } else {
            echo '&nbsp;&nbsp;FALSE<br />';
                }    
            }
        }
    }
} 

[virginiamonkeys]

I figured this one out. I was using the wrong function. I needed strstr():

if(is_array($newlist)){
    foreach ($newlist as $key => $value){
            echo $key.'<br />';
        if(is_array($newlist[$key])){
        foreach ($newlist[$key] as $key => $value){
            echo '&nbsp;&nbsp;'.$value.'<br />';
            if (strstr($value,"o")){
            echo '&nbsp;&nbsp;TRUE<br />';
                } else {
            echo '&nbsp;&nbsp;FALSE<br />';
                }    
            }
        }
    }
}