oik_fie_validate_field() – Field must not be blank

Description

Field must not be blank

Usage

oik_fie_validate_field( $field );

Parameters

$field

( mixed ) required –

Returns

void

Source

File name: oik-types/admin/oik-fields.php
Lines:

function oik_fie_validate_field( &$field ) {
  $valid = isset( $field );
  if ( $valid ) { 
    $field = trim( $field );
    $valid = strlen( $field ) > 0;
  } 
  if ( !$valid ) { 
    p( "Field must not be blank" );   
  } else {  
    $sanitized_field = sanitize_key( $field );
    if ( $sanitized_field != $field ) {
      p( "Field name should be lower case, preferably starting with an underscore e.g. _" . strtolower( $sanitized_field ) );
      $valid = false;
      $field = $sanitized_field;
      if ( substr( $field, 0 ) != "_" ) {
        $field = "_". $field;
      }  
    }
  }  
  return $valid;
}
 

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