46 lines
961 B
PHP
46 lines
961 B
PHP
<?php
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class Cache
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{
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public static function store( $key, $data, $ttl = 86400 )
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{
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file_put_contents( self::get_file_name( $key ), gzdeflate( serialize( array( time() + $ttl, $data ) ) ) );
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}
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private static function get_file_name( $key )
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{
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$md5 = md5( $key );
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$dir = 'temp/' . $md5[0] . '/' . $md5[1] . '/';
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if ( !is_dir( $dir ) )
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mkdir( $dir , 0755 , true );
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return $dir . 's_cache_' . $md5;
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}
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public static function fetch( $key )
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{
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$filename = self::get_file_name( $key );
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if ( !file_exists( $filename ) || !is_readable( $filename ) )
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return false;
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$data = gzinflate( file_get_contents( $filename ) );
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$data = @unserialize( $data );
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if ( !$data )
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{
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unlink( $filename );
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return false;
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}
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if ( time() > $data[0] )
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{
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if ( file_exists( $filename ) )
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unlink( $filename );
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return false;
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}
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return $data[1];
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}
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}
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?>
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