check if value exists
I am working in code igniter,
code igniter has a function called table_exists();
where you pass it a table name, and, as expected it che开发者_C百科cks the database to see if it exists.
What I want to do is,
start with tablename
if tablename exists, use tablename1, if tablename1 exists use tablename2 etc.
My question is,
what is the best way to write this?
$i = 1;
$table_name = 'table';
$table_name_test = $table_name;
while($this->db->table_exists($table_name_test)) {
$table_name_test = $table_name . strval($i);
$i++;
}
$tablename = $tablename_test;
Make sure you use the full $this->db->table_exists()
CodeIgniter syntax
Probably something like this:
$tblname = "sometablename";
$i = 1;
$new_tblname = $tblname;
while ($this->db->table_exists($new_tblname)){
$new_tblname = $tblname . $i++;
}
echo $new_tblname;
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