Php > Miscellaneous

Simple Debug functions

Simple Debug functions

<?php 
/** 
* a variable to control whether debug code is displayed or not 
* 
* @param boolean $debug boolean to toggle debug code showing or not showing 
* 
*/ 
$debug=true; 
//$debug=false; 

/** 
* simple debug function 
* 
* got this function from the user-feedback section for the 
* print_r php function on www.php.net 
* its very useful for debugging 
* 
* @param mixed $call a variable to be dumped for display 
* @param string $cname a string to describe variable being dumped 
* 
* 
*/ 
function dp($call,$cname) { 
    global $debug; 
    if($debug){ 
        echo "<br/>".$cname.":<pre>"; 
        if(!is_array($call)){$call=htmlspecialchars($call);} 
        print_r($call); 
        if(is_array($call)){reset($call);} 
        echo "</pre><hr/>\n"; 
    }//end function dp() 
}//end dp 

/** 
* a function to display multiple variables side-by-side 
* 
* an extended version of dp() 
* it takes an array in and dynamically creates variable names 
* based on the array passed in so that side-by-side 
* comparissons of variables can be done. 
* this is most useful for comparing scopes... 
* i.e. the $_POST scope to the $_SESSION scope... 
* example of a call: 
* dpa(array('xvar'=>'$xvar','AUTH'=>'$AUTH','tmp_AUTH_admin'=>'$tmp_AUTH_admin','x'=>'array_intersect($AUTH["xvar"],$xvar)')); 
* Note that the key=>val pairs are VARNAME=>LABLE_TO_DESCRIBE. 
* The varname has no $ so that it can be dynamically called within the function 
* 
* @param array $dbug an array of key=>var pairs where the key is a variable name with no $, and the var is a lable to describe the key 
* @global boolean $debug used to check if the function should run or not 
* @global mixed $key this is a mixed data type based on the key value of the array passed in. 
* 
* @see dp() 
* 
*/ 
function dpa($dbug) { 
  global $debug; 
    echo '<br/>'; 
  foreach($dbug as $key=>$val){global ${$key};} 
  if($debug){ 
    $rspan=count($dbug); 
    ($rspan==0)?$colpct=100:$colpct=100/$rspan; 
    echo '<table cellspacing="2" cellpadding="5" width="75%" style="background-color:black;">'."\n"; 
    echo '<tr><th colspan="'.$rspan.'" style="background-color:lightgrey;font-size:11pt; font-family:"Verdana";font-weight:bold;color:black;"> D E B U G : </th></tr>'."\n"; 
    echo '<tr>'."\n"; 
       
    foreach($dbug as $key=>$val){ 
      echo '<td width="'.$colpct.'%" valign="top" style="background-color:white;font-size:8pt; font-family:"Verdana";font-weight:normal;color:black;">'."\n"; 
      echo '<span style="background-color:white;font-size:10pt; font-family:"Verdana";font-weight:bold;color:blue;">"'.$val.'":</span> <pre>'."\n"; 
      if(!is_array(${$key})){${$key}=htmlspecialchars(${$key});} 
      print_r(${$key}); 
      if(is_array(${$key})){reset(${$key});} 
      echo '</pre>'."\n"; 
      echo '</td>'."\n"; 
    } 
    echo '</tr></table><hr width="75%" align="left">'."\n"; 
  } 
}//end function dpa() 

/** 
* a function to display multiple variables side-by-side with the datatype of each variable displayed as well 
* 
* an extended version of dp() 
* it takes an array in and dynamically creates variable names based on the array passed in so that side-by-side 
* comparissons of variables can be done. 
* this is most useful for comparing scopes... 
* i.e. the $_POST scope to the $_SESSION scope... 
* This function also displays the datatype of each variable 
* example of a call: 
* dpa(array('xvar'=>'$xvar','AUTH'=>'$AUTH','tmp_AUTH_admin'=>'$tmp_AUTH_admin','x'=>'array_intersect($AUTH["xvar"],$xvar)')); 
* Note that the key=>val pairs are VARNAME=>LABLE_TO_DESCRIBE. 
* The varname has no $ so that it can be dynamically called within the function 
* 
* @param array $dbug an array of key=>var pairs where the key is a variable name with no $, and the var is a lable to describe the key 
* @global boolean $debug used to check if the function should run or not 
* @global mixed $key this is a mixed data type based on the key value of the array passed in. 
* 
* @see dp() 
* 
*/ 
function vdpa($dbug) { 
  global $debug; 
    echo '<br/>'; 
  foreach($dbug as $key=>$val){global ${$key};} 
  if($debug){ 
    $rspan=count($dbug); 
    ($rspan==0)?$colpct=100:$colpct=100/$rspan; 
    echo '<table cellspacing="2" cellpadding="5" width="75%" style="background-color:black;">'."\n"; 
    echo '<tr><th colspan="'.$rspan.'" style="background-color:lightgrey;font-size:11pt; font-family:"Verdana";font-weight:bold;color:black;"> D E B U G : </th></tr>'."\n"; 
    echo '<tr>'."\n"; 
       
    foreach($dbug as $key=>$val){ 
      echo '<td width="'.$colpct.'%" valign="top" style="background-color:white;font-size:8pt; font-family:"Verdana";font-weight:normal;color:black;">'."\n"; 
      echo '<span style="background-color:white;font-size:10pt; font-family:"Verdana";font-weight:bold;color:blue;">"'.$val.'":</span> <pre>'."\n"; 
      if(!is_array(${$key})){${$key}=htmlspecialchars(${$key});} 
      var_dump(${$key}); 
      if(is_array(${$key})){reset(${$key});} 
      echo '</pre>'."\n"; 
      echo '</td>'."\n"; 
    } 
    echo '</tr></table><hr width="75%" align="left">'."\n"; 
  } 
}//end function vdpa() 
?>