command line - Halt PHP CLI script to give the user possibility to exit with CTRL-C -


how pause execution of command line script give user possibility exit ctrl+c?

for example have script deleting user id number of tables, halt script before doing it:

<?php  define('dbhost', '/tmp'); define('dbname', 'xxx'); define('dbuser', 'yyy'); define('dbpass', 'zzz');  $tables = array('pref_game',                 'pref_hand',                 'pref_luck',                 'pref_match',                 'pref_misere',                 'pref_money',                 'pref_pass',                 'pref_rep',                 'pref_status',                 'pref_users'         );  if ($argc != 2)         exit("missing user id\n");  if (!preg_match('/^([a-z]{2}[0-9]+)$/', $argv[1], $matches))         exit("invalid user id\n");  $id = $matches[1]; printf("deleting user %s press ctrl-c abort\n\n", $id);  # xxx stop here, how? xxx  try {         $db = new pdo('pgsql:host=' . dbhost . '; dbname=' . dbname, dbuser, dbpass);         $db->setattribute(pdo::attr_errmode, pdo::errmode_exception);          foreach ($tables $table) {                 $sql = sprintf('delete %s id=?', $table);                 run_sql($db, $sql, $id);         }  } catch (exception $e) {        exit('database problem: ' . $e->getmessage()); }  function run_sql($db, $sql, $arg) {         $sth = $db->prepare($sql);         $sth->execute(array($arg));         printf("sql: %s\naffected rows: %d\n\n", $sql, $sth->rowcount()); }  ?>

using centos linux 5.5 + php 5.1.6 + postgresql 8.4.7.

try with:

    printf("deleting user %s press ctrl-c abort, enter continue\n\n", $id);     $fp = fopen("php://stdin","r");     fgets($fp);      echo "ok!";

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