php - MySQLi "bind_param" in cycle -

why can not use "bind_param" this? there alternative ways use binding in cycle?

$insert = $this->db->prepare('insert '.$tablename.' ('.implode($colum, ', ').') values ('.implode($placeholder, ', ').'); ');  ($i=0;$i<$count;$i++) {      $insert->bind_param($query[$i]['type'], $query[$i]['value']);  } 

well, error makes pretty clear: $placeholder array doesn't contain same number of placeholders have parameters in $query array.

check code building $placeholder , $query arrays. if can't find problem, add piece of code in question.

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ok, sorry, i'm not used mysqli. apparently have pass parameters in 1 call bind_param. that's annoying, there's workaround.

the call_user_func_array function allows pass arguments function array.

so can:

• construct string of types looping through parameters;
• make array $params string @ index 0, , parameters' values @ subsequent indexes;
• call call_user_func_array(array($insert, 'bind_param'), $params);.

that this:

$insert = $this->db->prepare('insert '.$tablename.' ('.implode($colum, ', ').') values ('.implode($placeholder, ', ').'); ');  $values = array(); ($i=0 ; $i<$count ; $i++) {      $types .= $query[$i]['type']; // needs 1 single character [idsb]     $values[] = $query[$i]['value']; }  $params = array_merge(array($types), $values); call_user_func_array(array($insert, 'bind_param'), $params);