PHP reads the SQL file and imports the database (example)

/** * Read SQL file and write to database * @version 1.01 demo.php * @author Xingshaocheng * @edit: bbs.it-home.org */ Class DBManager { var $dbHost = '; var $dbUser = '; var $dbPassword = '; var $dbSchema = '; function __construct ($host, $user, $password, $schema) { $this->dbhost = $host; $this->dbuser = $user; $this->dbpassword = $password; $this->dbschema = $schema; } function CreateFromFile ($sqlPath, $delimiter = ' (; \ n) | ( (; \ r \ n)) | (; \ r) ', $prefix = ', $commenter = Array (' # ', '--')) { Determine if a file exists if (!file_exists ($sqlPath)) return false; $handle = fopen ($sqlPath, ' RB '); $SQLSTR = Fread ($handle, FileSize ($sqlPath)); Splitting by a statement separator in SQL syntax $segment = Explode (";", Trim ($SQLSTR)); Var_dump ($segment); Get rid of comments and extra blank lines foreach ($segment as & $statement) { $sentence = explode ("\ n", $statement); $newStatement = Array (); foreach ($sentence as $subSentence) { if ('! = Trim ($subSentence)) { Judging whether it would be a comment $isComment = false; foreach ($commenter as $comer) { if (eregi ("^ (" $comer. ")", Trim ($subSentence))) { $isComment = true; Break } } If it is not a comment, it is considered an SQL statement if (! $isComment) $newStatement [] = $subSentence; } } $statement = $newStatement; } Prefix the table name if ('! = $prefix) { Only table names are valid when the first row appears, such as CREATE table Talbename $regxTable = "^[\ \" \ "]{0,1}[\_a-za-z]+[\_a-za-z0-9]*[\" \ "]{0,1}$";//Regular expression for table name processing $regxLeftWall = "^[\" \ "[] developed"; $sqlFlagTree = Array ( "CREATE" = = Array ( "TABLE" = = Array ( "$regxTable" = 0 ) ), "INSERT" = = Array ( "into" = = Array ( "$regxTable" = 0 ) ) ); foreach ($segment as & $statement) { $tokens = Split ("", $statement [0]); $tableName = Array (); $this->findtablename ($sqlFlagTree, $tokens, 0, $tableName); if (Empty ($tableName [' Leftwall '])) { $newTableName = $prefix. $tableName [' name ']; } else{ $newTableName = $tableName [' Leftwall ']. $prefix. substr ($tableName [' name '],1); } $statement [0] = str_replace ($tableName [' name '], $newTableName, $statement [0]); } } Combining SQL statements foreach ($segment as & $statement) { $newStmt = "; foreach ($statement as $sentence) { $newStmt = $newStmt. Trim ($sentence). " \ n "; } $statement = $newStmt; } For testing------------------------ Var_dump ($segment); Writearraytofile (' Data.txt ', $segment); //------------------------------- Self::savebyquery ($segment); return true; } Private Function Savebyquery ($sqlArray) { $conn = mysql_connect ($this->dbhost, $this->dbuser, $this->dbpassword); mysql_select_db ($this->dbschema); foreach ($sqlArray as $sql) { mysql_query ($sql); } Mysql_close ($conn); } Private Function Findtablename ($sqlFlagTree, $tokens, $tokensKey =0,& $tableName = Array ()) { $regxLeftWall = "^[\" \ "[] developed"; if (count ($tokens) <= $tokensKey) return false; if (' = = Trim ($tokens [$tokensKey]) { Return Self::findtablename ($sqlFlagTree, $tokens, $tokensKey +1, $tableName); } Else { foreach ($sqlFlagTree as $flag = $v) { if (eregi ($flag, $tokens [$tokensKey])) { if (0== $v) { $tableName [' name '] = $tokens [$tokensKey]; if (eregi ($regxLeftWall, $tableName [' name '])) { $tableName [' leftwall '] = $tableName [' Name ']{0}; } return true; } else{ Return Self::findtablename ($v, $tokens, $tokensKey +1,& $tableName); } } } } return false; } } function Writearraytofile ($fileName, $dataArray, $delimiter = "\ r \ n") { $handle =fopen ($fileName, "WB"); $text = "; foreach ($dataArray as $data) { $text = $text. $data. $delimiter; } Fwrite ($handle, $text); } Test $dbM = new DBManager (' localhost ', ' w01f ', ' 123456 ', ' test '); $dbM->createfromfile (' Data.sql ', null, ' fff_ '); ?> Copy Code

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