I am trying to create a PHP function which will allow me to read selected lines from a text file using a JSON string. The JSON string consists of two numbers separated by a comma. The first number is the line I want to seek, and the second is the number of lines to read going downward.
For example, I have this sentence in a separate text file:
A diving spiral attack in which Pikachu head butts downward while
being surrounded by electricity.
(If you're wondering, this is part of my upcoming fan site, still under construction).
The sentence starts at line 6, and uses up 2 lines. So in my JSON file, I would write "6,2". The explode() command is ran using the comma as the delimiter, allowing me to store these number into two individual variables, $start and $length.
$result = explode(",", $sample); // In JSON string, $sample is $i["desc"]
$start = $result[0];
$length = $result[1];
With the variables now in place, the following lines will then be called to perform the actual line-by-line extraction.
$file = new SplFileObject("pikachu/pikachu.txt");
for ($i = $start; $i <= ($start+$length); $i++) {
$file->seek($i-1);
echo "$file";
}
I did a test of my script using a direct call instead of through JSON parsing. That worked. But when I tried to use the JSON string, I ended up with both a Runtime and a Fatal Error.
How do I fix the scripts so that I can use the JSON string as markers for seeking lines from an external text to print while avoiding the Runtime and Fatal Errors?
(EDIT: The problem became too difficult for me to fix, so I've decided to ditch the line-by-line seek feature for now. I will revisit this on a later date. I will leave the code below for archival purposes.)
character.php
<?php
$name = $_GET['name'];
// Step 1: Get the name from the previous page and store it.
$file = file_get_contents("characters/$name/$name.json");
// Step 2: Use the name to find a JSON file for the character (We'll do the moves list later).
$json = json_decode($file, true);
// Step 3: Decode the JSON file
$character = $json["character"][0]["name"];
$group = $json["character"][0]["group"];
$series = $json["character"][0]["series"];
$story = $json["character"][0]["story"];
$snapback = $json["character"][0]["snapback"];
$interrupt = $json["character"][0]["interrupt"];
$hiddenpow = $json["character"][0]["hiddenpow"];
$disrupt = $json["character"][0]["disrupt"];
$assist1 = $json["character"][0]["assist1"];
$assist2 = $json["character"][0]["assist2"];
$assist3 = $json["character"][0]["assist3"];
$counter = $json["character"][0]["counter"];
$bros = $json["character"][0]["bros"];
$party = $json["character"][0]["party"];
$ground = $json["character"][0]["ground"];
$jump = $json["character"][0]["jump"];
$superjump = $json["character"][0]["superjump"];
$launcher = $json["character"][0]["launcher"];
$altlaunch = $json["character"][0]["altlaunch"];
$acfinisher = $json["character"][0]["acfinisher"];
// Step 4: Retrieve variables and store them for use
echo "<HTML>\n";
echo "<HEAD>\n";
echo "<TITLE>Marvel & Capcom vs. Pokemon: $character</TITLE>\n\n";
echo "<LINK rel=\"stylesheet\" type=\"text/css\" href=\"http://fonts.googleapis.com/css?family=Roboto\">\n";
echo "<LINK rel=\"stylesheet\" type=\"text/css\" href=\"http://fonts.googleapis.com/css?family=Open+Sans\">\n";
echo "<LINK rel=\"stylesheet\" type=\"text/css\" href=\"media/style.css\">\n";
echo "<SCRIPT type=\"text/javascript\" src=\"media/tabs.js\"></SCRIPT>\n";
echo "<SCRIPT type=\"text/javascript\">\n";
echo "function toggle_visibility(id) {\n";
echo " var movename = id.nextSibling.nextSibling;\n";
echo " if(movename.style.display == \"block\")\n";
echo " movename.style.display = \"none\";\n";
echo " else\n";
echo " movename.style.display = \"block\";\n";
echo "}\n";
echo "</SCRIPT>";
echo "</HEAD>\n\n";
echo "<BODY onload=\"init()\">\n\n";
// Step 5: The HTML stuff begins
echo "<TABLE id=\"Character\">\n";
echo " <TR>\n";
echo " <TD class=\"Name\">" . strtoupper($character) . "</TD>\n";
echo " <TD class=\"Image\" rowspan=\"4\"><IMG src=\"characters/$name/$name.jpg\"></TD></TR>\n";
echo " <TR>\n";
echo " <TD class=\"Series\">Series: $series</TD></TR>\n";
echo " <TR>\n";
echo " <TD class=\"Story\">$story</TD></TR>\n";
// Step 6: Write the variables to the file
echo " <TR>\n";
echo " <TD style=\"vertical-align: top\">\n";
echo " <TABLE id=\"$group\">\n";
function moverw ($move) {
$subfollow = "FOLLOW>>";
$follow = "FOLLOW>";
if (strpos($move,$subfollow) !== false)
$move .= " (followup)";
else if (strpos($move,$follow) !== false)
$move .= " (followup)";
$move = str_replace("FOLLOW>>", "<IMG class=\"Followup\" src=\"images/follow.png\" style=\"text-indent: 5px\"> ", $move);
$move = str_replace("FOLLOW>", "<IMG class=\"Followup\" src=\"images/follow.png\"> ", $move);
return ($move);
}
function descrw ($desc,$name) {
$result = explode(",", $desc);
$start = $result[0];
$length = $result[1];
$file = new SplFileObject("characters/$name/$name.txt");
$result = "";
for ($i = $start; $i <= ($start+$length); $i++) {
$file->seek($i-1);
$result .= $file;
}
return($result);
}
function commrw ($command) {
$command = str_replace("AM,", "<IMG title=\"Assist Mode\" src=\"images/assist.gif\"> ", $command);
$command = str_replace("SM,", "<IMG title=\"Single Mode\" src=\"images/single.gif\"> ", $command);
$command = str_replace("BRAWL,", "<IMG title=\"Super Smash Brawl\" src=\"images/brawl.png\"> ", $command);
$command = str_replace("uf,", "<IMG class=\"Arrow\" src=\"images/uf.png\">", $command);
$command = str_replace("df,", "<IMG class=\"Arrow\" src=\"images/df.png\">", $command);
$command = str_replace("ub,", "<IMG class=\"Arrow\" src=\"images/ub.png\">", $command);
$command = str_replace("db,", "<IMG class=\"Arrow\" src=\"images/db.png\">", $command);
$command = str_replace("u,", "<IMG class=\"Arrow\" src=\"images/u.png\">", $command);
$command = str_replace("f,", "<IMG class=\"Arrow\" src=\"images/f.png\">", $command);
$command = str_replace("d,", "<IMG class=\"Arrow\" src=\"images/d.png\">", $command);
$command = str_replace("b,", "<IMG class=\"Arrow\" src=\"images/b.png\">", $command);
$command = str_replace("+", "<IMG class=\"Plus\" src=\"images/plus.png\">", $command);
$command = str_replace("AP", "<IMG class=\"Button\" src=\"images/punch.png\">", $command);
$command = str_replace("AK", "<IMG class=\"Button\" src=\"images/kick.png\">", $command);
$command = str_replace("A1", "<IMG class=\"Button\" title=\"Assist 1\" src=\"images/assist1.png\">", $command);
$command = str_replace("A2", "<IMG class=\"Button\" title=\"Assist 2\" src=\"images/assist2.png\">", $command);
$command = str_replace("AB", "<IMG class=\"Button\" title=\"Assist\" src=\"images/assist.png\">", $command);
$command = str_replace("LP", "<IMG class=\"Button\" title=\"Jab\" src=\"images/jab.png\">", $command);
$command = str_replace("LK", "<IMG class=\"Button\" title=\"Short\" src=\"images/short.png\">", $command);
$command = str_replace("MP", "<IMG class=\"Button\" title=\"Strong\" src=\"images/strong.png\">", $command);
$command = str_replace("MK", "<IMG class=\"Button\" title=\"Forward\" src=\"images/forward.png\">", $command);
$command = str_replace("HP", "<IMG class=\"Button\" title=\"Fierce\" src=\"images/fierce.png\">", $command);
$command = str_replace("HK", "<IMG class=\"Button\" title=\"Roundhouse\" src=\"images/roundhouse.png\">", $command);
$command = str_replace("FOLLOW>>", "<IMG class=\"Followup\" src=\"images/follow.png\" style=\"text-indent: 5px\"> ", $command);
$command = str_replace("FOLLOW>", "<IMG class=\"Followup\" src=\"images/follow.png\"> ", $command);
$command = str_replace("degrees", "°", $command);
return ($command);
}
function typerw ($type) {
$type = str_replace("BUG.", "<IMG src=\"images/bug.png\">", $type);
$type = str_replace("CYBER.", "<IMG src=\"images/cyber.png\">", $type);
$type = str_replace("DARK.", "<IMG src=\"images/dark.png\">", $type);
$type = str_replace("DRAGON.", "<IMG src=\"images/dragon.png\">", $type);
$type = str_replace("ELECTRIC.", "<IMG src=\"images/electric.png\">", $type);
$type = str_replace("FAIRY.", "<IMG src=\"images/fairy.png\">", $type);
$type = str_replace("FIGHTING.", "<IMG src=\"images/fighting.png\">", $type);
$type = str_replace("FIRE.", "<IMG src=\"images/fire.png\">", $type);
$type = str_replace("FLYING.", "<IMG src=\"images/flying.png\">", $type);
$type = str_replace("GHOST.", "<IMG src=\"images/ghost.png\">", $type);
$type = str_replace("GRASS.", "<IMG src=\"images/grass.png\">", $type);
$type = str_replace("GROUND.", "<IMG src=\"images/ground.png\">", $type);
$type = str_replace("ICE.", "<IMG src=\"images/ice.png\">", $type);
$type = str_replace("LIGHT.", "<IMG src=\"images/light.png\">", $type);
$type = str_replace("NORMAL.", "<IMG src=\"images/normal.png\">", $type);
$type = str_replace("PSYCHIC.", "<IMG src=\"images/psychic.png\">", $type);
$type = str_replace("STEEL.", "<IMG src=\"images/steel.png\">", $type);
$type = str_replace("WATER.", "<IMG src=\"images/water.png\">", $type);
return ($type);
}
function noterw ($note) {
$note = str_replace(".AM.", "<IMG title=\"Assist Mode\" src=\"images/assist.gif\"> ", $note);
$note = str_replace(".SM.", "<IMG title=\"Single Mode\" src=\"images/single.gif\"> ", $note);
$note = str_replace(".HP.", "<IMG class=\"HiddenPower\" title=\"Hidden Power\"src=\"images/hiddenpower.png\">", $note);
return ($note);
}
foreach ($json["character"][0]["moves"] as $i) {
if ($i["flag"] == "normal") {
$move = strtoupper($i["move"]);
$desc = $i["desc"];
$command = $i["comm"];
$type = $i["type"];
$note = $i["note"];
echo " <TR>\n";
echo " <TD class=\"MoveName Normal\"><A href=\"javascript:;\" onclick=\"toggle_visibility(this);\">" . moverw($move) . "</A>\n";
echo " <DIV class=\"Details\">" . descrw($desc,$name) . "</DIV></TD>\n";
echo " <TD class=\"Command\">" . commrw($command) . "</TD>\n";
echo " <TD class=\"Type\">" . typerw($type) . "</TD>\n";
echo " <TD class=\"Note\">" . noterw($note) . "</TD></TR>\n";
}
if ($i["flag"] == "special") {
$move = strtoupper($i["move"]);
$command = $i["comm"];
$type = $i["type"];
$note = $i["note"];
echo " <TR>\n";
echo " <TD class=\"MoveName Special\"><A href=\"javascript:;\" onclick=\"toggle_visibility(this);\">" . moverw($move) . "</A>\n";
echo " <DIV class=\"Details\">" . $i["desc"] . "</DIV></TD>\n";
echo " <TD class=\"Command\">" . commrw($command) . "</TD>\n";
echo " <TD class=\"Type\">" . typerw($type) . "</TD>\n";
echo " <TD class=\"Note\">" . noterw($note) . "</TD></TR>\n";
}
if ($i["flag"] == "hyper") {
$move = strtoupper($i["move"]);
$command = $i["comm"];
$type = $i["type"];
$note = $i["note"];
echo " <TR>\n";
echo " <TD class=\"MoveName Hyper\"><A href=\"javascript:;\" onclick=\"toggle_visibility(this);\">" . moverw($move) . "</A>\n";
echo " <DIV class=\"Details\">" . $i["desc"] . "</DIV></TD>\n";
echo " <TD class=\"Command\">" . commrw($command) . "</TD>\n";
echo " <TD class=\"Type\">" . typerw($type) . "</TD>\n";
echo " <TD class=\"Note\">" . noterw($note) . "</TD></TR>\n";
}
if ($i["flag"] == "final") {
$move = strtoupper($i["move"]);
$command = $i["comm"];
$type = $i["type"];
$note = $i["note"];
echo " <TR>\n";
echo " <TD class=\"MoveName Final\"><A href=\"javascript:;\" onclick=\"toggle_visibility(this);\">" . moverw($move) . "</A>\n";
echo " <DIV id=\"Final\" class=\"Details\">" . $i["desc"] . "</DIV></TD>\n";
echo " <TD class=\"Command\">" . commrw($command) . "</TD>\n";
echo " <TD class=\"Type\">" . typerw($type) . "</TD>\n";
echo " <TD class=\"Note\">" . noterw($note) . "</TD></TR>\n";
}
}
// Step 7: Write the moves. When Command and Type are parsed, execute respective rewriters. Saves me from typing lots, hun ;)
echo " </TABLE></TD></TR>\n";
echo " <TR>\n";
echo " <TD colspan=\"2\">\n";
echo " <UL id=\"tabs\">\n";
echo " <LI><A href=\"#Single\" onclick=\"showTab()\">SINGLE MODE</A></LI>\n";
echo " <LI><A href=\"#Assist\" onclick=\"showTab()\">ASSIST MODE</A></LI>\n";
echo " <LI><A href=\"#Combo\" onclick=\"showTab()\">COMBO PROFILE</A></LI>\n";
echo " <LI><A href=\"#Attack\" onclick=\"showTab()\">ATTACK PROFILE</A></LI></UL>\n";
echo " <DIV class=\"tabContent\" id=\"Single\">\n";
echo " <TABLE id=\"Single\" border=1>\n";
echo " <TR>\n";
echo " <TH>Snapback:</TH>\n";
echo " <TD>$snapback</TD></TR>\n";
echo " <TR>\n";
echo " <TH>Interrupt:</TH>\n";
echo " <TD>$interrupt</TD></TR>\n";
echo " <TR>\n";
echo " <TH>Hidden Power:</TH>\n";
echo " <TD>$hiddenpow</TD></TR>\n";
echo " <TR>\n";
echo " <TH class=\"Header Rumble\"colspan=\"2\">RUMBLE CHART</TH></TR>\n";
echo " <TR>\n";
echo " <TD colspan=\"2\"></TH></TR></TABLE></DIV>\n";
echo " <DIV class=\"tabContent\" id=\"Assist\">\n";
echo " <TABLE id=\"Assist\" border=1>\n";
echo " <TR>\n";
echo " <TH>Disrupt:</TH>\n";
echo " <TD>$disrupt</TD></TR>\n";
echo " <TR>\n";
echo " <TH colspan=2>Assist Attacks</TH></TR>\n";
echo " <TR>\n";
echo " <TH><IMG class=\"Button\" title=\"Assist\" src=\"images/assist.png\"></TH>\n";
echo " <TD>$assist1</TD></TR>\n";
echo " <TR>\n";
echo " <TH><IMG class=\"Button\" title=\"Assist\" src=\"images/assist.png\"><IMG class=\"Plus\" src=\"images/plus.png\"><IMG class=\"Button\" title=\"Fierce\" src=\"images/fierce.png\"></TH>\n";
echo " <TD>$assist2</TD></TR>\n";
echo " <TR>\n";
echo " <TH><IMG class=\"Button\" title=\"Assist\" src=\"images/assist.png\"><IMG class=\"Plus\" src=\"images/plus.png\"><IMG class=\"Button\" title=\"Roundhouse\" src=\"images/roundhouse.png\"></TH>\n";
echo " <TD>$assist3</TD></TR>\n";
echo " <TR>\n";
echo " <TH>Cross-Over Counter:</TH>\n";
echo " <TD>$counter</TD></TR>\n";
echo " <TR>\n";
echo " <TH colspan=2>Super Smash Melee</TH></TR>\n";
echo " <TR>\n";
echo " <TH>Bros. Attack:</TH>\n";
echo " <TD>$bros</TD></TR>\n";
echo " <TR>\n";
echo " <TH>Party Attack:</TH>\n";
echo " <TD>$party</TD></TR></TABLE></DIV>\n";
echo " <DIV class=\"tabContent\" id=\"Combo\">\n";
echo " <TABLE id=\"Combo\" border=1>\n";
echo " <TR>\n";
echo " <TH colspan=2>???</TH></TR>\n";
echo " <TR>\n";
echo " <TH>Ground:</TH>\n";
echo " <TD>$ground</TD></TR>\n";
echo " <TR>\n";
echo " <TH>Jump:</TH>\n";
echo " <TD>$jump</TD></TR>\n";
echo " <TR>\n";
echo " <TH>Super Jump:</TH>\n";
echo " <TD>$superjump</TD></TR>\n";
echo " <TR>\n";
echo " <TH colspan=2></TH></TR>\n";
echo " <TR>\n";
echo " <TH>Launcher:</TH>\n";
echo " <TD>$launcher</TD></TR>\n";
if ($altlaunch != null) {
echo " <TR>\n";
echo " <TH>Alternate Launch:</TH>\n";
echo " <TD>$altlaunch</TD></TR>\n";
}
echo " <TR>\n";
echo " <TH>AC Finishers:</TH>\n";
echo " <TD>$acfinisher</TD></TR></TABLE></DIV>\n";
echo " <DIV class=\"tabContent\" id=\"Attack\">\n";
echo " $test 4\n";
echo " </DIV>\n";
echo " </TD></TR></TABLE></TD></TR></TABLE>\n\n";
echo "</BODY></HTML>";
?>
$name.json, where $name is the name of the character (using pikachu as demo):
{"character":[
{
"name":"Pikachu",
"group":"Pokemon",
"series":"Pokemon",
"story":"To-do...",
"moves":[
{
"flag":"normal",
"move":"Discharge",
"desc":"3,2",
"comm":"Press HP (crouch) (air)",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"normal",
"move":"Electric Screw",
"desc":"6,2",
"comm":"Tilt d,+HP [air]",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"normal",
"move":"Tackle",
"desc":"9,1",
"comm":"Tap f, , f,",
"type":"NORMAL.",
"note":"Notes"
},
{
"flag":"special",
"move":"Quick Attack",
"desc":"11,2",
"comm":"Tap any direction and Press AP (air)",
"type":"ELECTRIC.FIGHTING.",
"note":"Notes"
},
{
"flag":"special",
"move":"Thunder Jolt",
"desc":"14",
"comm":"Motion d,df,f,+AP",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"special",
"move":"Electro Ball",
"desc":"16,2",
"comm":"Motion d,df,f,+AP [air]",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"special",
"move":"Thunder",
"desc":"19,2",
"comm":"Motion f,d,df,+AP (air)",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"special",
"move":"Electric Chair",
"desc":"22,2",
"comm":"Motion f,df,d,db,b,+AP",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"hyper",
"move":"Thunder Shock",
"desc":"25,2",
"comm":"Motion d,df,f,+APAP (air)",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"hyper",
"move":"Thunder Bolt",
"desc":"28,1",
"comm":"Motion d,df,f,+AKAK (air)",
"type":"ELECTRIC.",
"note":"Notes"
},
{
"flag":"hyper",
"move":"Skull Bash",
"desc":"30,2",
"comm":"Motion d,db,b,+APAP (air)",
"type":"ELECTRIC.FIGHTING.",
"note":"Notes"
},
{
"flag":"final",
"move":"Volt Tackle",
"desc":"33,2",
"comm":"Motion d,df,f,d,df,f,+APAP (air)",
"type":"ELECTRIC.",
"note":"Notes"
}],
"snapback":"Crouching Forward",
"interrupt":"Thunder Jolt, Thunder",
"hiddenpow":"Hidden Power Enhancements (Line per line lookup)",
"disrupt":"Thunder",
"assist1":"Thunder Jolt",
"assist2":"Thunder",
"assist3":"Quick Attack",
"counter":"Thunder",
"bros":"Skull Bash",
"party":"Thunder Bolt",
"ground":"Punch to Kick",
"jump":"Punch to Kick",
"superjump":"Zig Zag",
"launcher":"Standing Roundhouse",
"altlaunch":"Crouching Strong",
"acfinisher":"Discharge, Electric Screw, Quick Attack, Electro Ball, Thunder, Thunder Shock, Thunder Bolt, Skull Bash"
}
]}
