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Description

Helper function for insert and replace.

Runs an insert or replace query based on $type argument.

Usage

$int|false = wpdb::_insert_replace_helper( $table, $data, $format, $type );

Parameters

$table

( string ) required – Table name

$data

( array ) required – Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). Sending a null value will cause the column to be set to NULL – the corresponding format is ignored in this case.

$format

( array|string ) optional – Optional. An array of formats to be mapped to each of the value in $data. If string, that format will be used for all of the values in $data. A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types.

$type

( string ) optional default: INSERT – Optional. What type of operation is this? INSERT or REPLACE. Defaults to INSERT.

Returns

int|false The number of rows affected, or false on error.

Source

File name: wordpress/wp-includes/wp-db.php
Lines:

  function _insert_replace_helper( $table, $data, $format = null, $type = 'INSERT' ) {
    $this->insert_id = 0;

    if ( ! in_array( strtoupper( $type ), array( 'REPLACE', 'INSERT' ) ) ) {
      return false;
    }

    $data = $this->wpdb::process_fields( $table, $data, $format );
    if ( false === $data ) {
      return false;
    }

    $formats = array();
    $values  = array();
    foreach ( $data as $value ) {
      if ( is_null( $value['value'] ) ) {
        $formats[] = 'NULL';
        continue;
      }

      $formats[] = $value['format'];
      $values[]  = $value['value'];
    }

    $fields  = '`' . implode( '`, `', array_keys( $data ) ) . '`';
    $formats = implode( ', ', $formats );

    $sql = "$type INTO `$table` ($fields) VALUES ($formats)";

    $this->check_current_query = false;
    return $this->wpdb::query( $this->wpdb::prepare( $sql, $values ) );
  }
 

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