webstar Posted June 29, 2007 Share Posted June 29, 2007 Hi all, The script below is outputting this error. It just started today and I can't figure out how to correct it. Fatal error: Cannot use string offset as an array in C:\WEATHERSCRIPTS\mto\test\roadclosed.php on line 37 <?php // Declare variables // $debug = false; $url = "http://www.mto.gov.on.ca/english/traveller/conditions/rdclosure.htm"; //$url = "./roadclosed1/rdclosure.htm"; $email_recip = "REMOVED"; #$email_recip = "REMOVED"; #$email_subject = MOVED TO LINE 47 $email_from = "WxServer Roads"; $email_from_addr = "REMOVED"; $message_header = "\n====START====\n"; $message_footer = "\n\n http://www.mto.gov.on.ca/english/traveller/conditions/rdclosure.htm"; $eventfilename = "roadclosed.txt"; // DON'T EDIT PAST HERE UNLESS YOU KNOW WHAT YOU'RE DOING // // MAIN PROGRAM /// $webpage = read_web($url); $content = find_data($webpage, "<DIV CLASS=\"content\">", "</DIV>"); // All content is in the <DIV></DIV> $content = find_data($content, "<TABLE", "</TABLE>"); // Look for the events HTML table $curr_events = read_html_table($content,true); // Parse the events HTML table $old_content = read_events_file(); // Read the old events HTML table if ($old_content) { $old_events = read_html_table($old_content, true); // Parse the old events HTML table } else { unset($old_events); } if ($debug) { print("Number of current events = " . count($curr_events) . "\n"); } if ($debug) { print("Number of old events = " . count($old_events) . "\n"); } //Go through the current events and look for a corrisponding old event $send_email = false; // Flag used to see if an email should be sent for new closure events $event_message = $message_header; for ($curr_event_num = 0; $curr_event_num < count($curr_events); $curr_event_num++) { $curr_event_found = false; for ($old_event_num = 0; $old_event_num < count($old_events); $old_event_num++) { if ($debug) { print("Comparing (" . $curr_events[$curr_event_num][0] . "?" . $old_events[$old_event_num][0] . ") & (" . $curr_events[$curr_event_num][1] . "?" . $old_events[$old_event_num][1] . ") & (" . $curr_events[$curr_event_num][2] . "?" . $old_events[$old_event_num][2] . ")\n"); } if (($curr_events[$curr_event_num][0] == $old_events[$old_event_num][0]) && ($curr_events[$curr_event_num][1] == $old_events[$old_event_num][1]) && ($curr_events[$curr_event_num][2] == $old_events[$old_event_num][2])) { // Found a matching event $curr_event_found = true; } } if (!$curr_event_found) { // Add the not found current event to the message $send_email = true; if ($debug) { print ("Found a new event:\nRegion: " . $curr_events[$curr_event_num][1] . "\nHighway(s): " . $curr_events[$curr_event_num][0] . "\nReason: " . $curr_events[$curr_event_num][2] . "\n=====END=====\n"); } // $event_message .= ">>> NEW <<<\n"; $event_message .= "Region: " . $curr_events[$curr_event_num][1] . "\nHighway(s): " . $curr_events[$curr_event_num][0] . "\nReason: " . $curr_events[$curr_event_num][2] . "\n====END====\n"; $email_subject .= " Hwy: " . $curr_events[$curr_event_num][0]; } else { // if ($debug) { print ("Found a previously sent event:\nRegion: " . $curr_events[$curr_event_num][1] . "\nHighway(s): " . $curr_events[$curr_event_num][0] . "\nReason: " . $curr_events[$curr_event_num][2] . "\n====END====\n"); } // $event_message .= "Region: " . $curr_events[$curr_event_num][1] . "\nHighway(s): " . $curr_events[$curr_event_num][0] . "\nReason: " . $curr_events[$curr_event_num][2] . "\n====END====\n"; } } $event_message .= $message_footer; //Send an email if there is a new event //Send an email if there is a new event if ($send_email and !preg_match('/there\s*are\s*no\s*reported\s*closures/i', $event_message)) { print ("Sending the message below to " . $email_recip . ", from \"" . $email_from . "\" <" .$email_from_addr . ">.\n" . $event_message . "\n"); mail ($email_recip, $email_subject, $event_message, "From: \"" . $email_from . "\" <" .$email_from_addr . ">"); print ("Found a new event:\nRegion: " . $curr_events[$curr_event_num][1] . "\nHighway(s): " . $curr_events[$curr_event_num][0] . "\nReason: " . $curr_events[$curr_event_num][2] . "\n==========\n"); } //Save the events to check the next time the script is run write_events_file($content); // Functions // //read_web - Read the web page // $strURL ==> URL of the webpage function read_web($strURL) { global $debug; $buffer = ""; if($debug){ print("Reading \"$strURL\".\n"); } $fh = fopen($strURL, "rb"); if ($fh === false) { return ""; } while (!feof($fh)) { $buffer .= fread($fh, 1024); } fclose($fh); return $buffer; } // end function read_web // find)data - Gets a substring of the webpage by scraping the data // $strFile ==> text of the webpage // $strStart_Pattern ==> start of the substring // $strEnd_Pattern ==> end of the substring function find_data($strFile,$strStart_Pattern,$strEnd_Pattern, $intStart_Position = 0) { global $debug; if($debug){ print("Searching for \"$strStart_Pattern\"...\"$strEnd_Pattern\".\n"); } $first_match = strpos($strFile,$strStart_Pattern, $intStart_Position); if ($first_match) { # find the begining of the tag for ($i = $first_match; $i>0;$i--) { $char = $strFile[$i]; if ($char == "<" ) { $first_match = $i; //record the location of the tag break; } } $partialbuffer = substr($strFile,$first_match,strlen($strFile) - $first_match); # find the end of the sub string $second_match = strpos($partialbuffer,$strEnd_Pattern); return substr($partialbuffer,0,$second_match + strlen($strEnd_Pattern)); } else { return(false); } } //end function find_data // read_html_table - Read the contents of an HTML table and return the array(s) // strHTMLTable ==> HTML table text // boolSkipFirstRow ==> Skip the first row if it contains column titles (true/false) function read_html_table($strHTMLTable, $boolSkipFirstRow) { global $debug; $table = ""; $th = ""; $td = ""; if($boolSkipFirstRow) { $rownum = -2; } else { $rownum = -1; } $rowopen = false; $strPos = 0; do { // Scrape through the table if (strtoupper(substr($strHTMLTable, $strPos, 3)) == "<TR") { //Look for the rows $strPos +=3; $strPos = strpos($strHTMLTable, ">", $strPos) + 1; // Find the end of the row open tag $rowopen = true; $rownum++; } if (strtoupper(substr($strHTMLTable, $strPos, 5)) == "</TR>") { $rowopen = false; $strPos += 5; // jump to the end of the close tag } if (strtoupper(substr($strHTMLTable, $strPos, 3)) == "<TH") { // Look for headers $strPos += 3; $strPos = strpos($strHTMLTable, ">", $strPos) + 1; // Find the end of the header open tag $endPos = strpos(strtoupper($strHTMLTable), "</TH>", $strPos); // Find the header close tag $th[] = substr($strHTMLTable, $strPos, $endPos - $strPos); $strPos = $endPos + 5; if($debug) { print("Found column header \"" . end($th) . "\" (" . (count($th) - 1) . ")\n"); } } if (strtoupper(substr($strHTMLTable, $strPos, 3)) == "<TD") { // Look for cells $strPos += 3; $strPos = strpos($strHTMLTable, ">", $strPos) + 1; // Find the end of the cell open tag $endPos = strpos(strtoupper($strHTMLTable), "</TD>", $strPos); // Find the cell close tag $td[$rownum][] = str_replace(array("\n","\t")," ",substr($strHTMLTable, $strPos, $endPos - $strPos)); $td[$rownum][count($td[$rownum]) - 1] = str_replace("\r"," ",$td[$rownum][count($td[$rownum]) - 1]); $td[$rownum][count($td[$rownum]) - 1] = preg_replace("/[\s]+/"," ",$td[$rownum][count($td[$rownum]) - 1]); $strPos = $endPos + 5; if($debug) { print("Found cell data \"" . end($td[$rownum]) . "\" (" . $rownum . "|" . (count($td[$rownum]) - 1) . ")\n"); } } $strPos++; } while ($strPos <= strlen($strHTMLTable)); return $td; /* if ($boolRowOneColumnTitles) { if ($th[0] != "") { // Create a new array that uses the headers as the array key $newtd = ""; $header = ""; $row = ""; if ($debug) { print(count($th) . " headers\n"); } if ($debug) { print(count($td) . " rows\n"); } for ($row = 0; $row <= count($td) - 1; $row++) { for ($cell = 0; $cell <= count($td[$row]) - 1; $cell++) { if ($debug) { print("(". $row . "|" . $cell . ") => " . $th[$cell] . "(" . $row . ") = " . $td[$row][$cell] . "\n"); } $newtd[$th[$cell]][$cell] = $td[$row][$cell]; } } return $newtd; } else { // There are no headers, so just return the td array. return $td; } } else { // Just return what's in the td array return $td; } */ } //end function readhtmltable // read_events_file - Reads the old events from event file function read_events_file() { global $debug; $eventfile = "roadclosed.txt"; $buffer = ""; if (is_file($eventfile)) { // Check to see if the event log exists $fh = fopen($eventfile, "r"); while (!feof($fh)) { $buffer .= fread($fh, 1024); } return $buffer; } return; // Return an empty array } // end function read_events_file // write_events_file - Writes the current events to a file to be read later // - strEvents ==> array of events function write_events_file($strEvents) { global $debug; $eventfile = "roadclosed.txt"; $fh = fopen($eventfile, "w"); if ($fh === false) { if ($debug) { print("ERROR: Could not write to \"" . $eventfile . "\"!\n"); } } else { fwrite ($fh, $strEvents); fclose ($fh); } return; } // end function write_events_file print ("ClosedRoadScript"); print date(" (G:i:s)"); ?> Link to comment https://forums.phpfreaks.com/topic/57668-string-offset-as-an-array/ Share on other sites More sharing options...
webstar Posted June 29, 2007 Author Share Posted June 29, 2007 Little more detail. This script used to read the coding from the URL for anything between <DIV></DIV> But the page has changed and now there is multiple DIV's in it now. If you run the script you will see the error. I have tried to edit the script at this point. $webpage = read_web($url); $content = find_data($webpage, "<DIV>", "</DIV>"); // All content is in the <DIV></DIV> $content = find_data($content, "<TABLE", "</TABLE>"); // Look for the events HTML table to have it start at different points but I still get the same error. It's likely something simple I overlooked. Link to comment https://forums.phpfreaks.com/topic/57668-string-offset-as-an-array/#findComment-286072 Share on other sites More sharing options...
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