从数组中查找并组合两个字符串答案

【问题标题】：Finding and combining two strings from an array从数组中查找并组合两个字符串
【发布时间】：2015-06-16 08:47:22
【问题描述】：

我有一个包含以下行的文本文件，我已将其读入名为 $pirep 的数组中。

06:36  Block to Block Duratio
n: 07:37 
06:36  Final Fuel: 1044 Lbls

我编写了代码来查找“块到块持续时间”并将随后的时间记录到数据库中。问题是代码找不到字符串，因为文本文件被分解成 1KB 的块，而这恰好落在我的搜索字符串的中间。

我知道如何使用 str_replace(PHP_EOL, '') 来连接两个字符串，如果数据每次都写在同一个地方那就太好了，但事实并非如此。

有没有办法识别每行之前的时间模式并组合行，直到找到该模式的下一次出现，以便最终结果看起来像：

06:36  Block to Block Duration: 07:37
06:36  Final Fuel: 1044 Lbls

这只是我的第二个问题，我真的希望不要让任何人对此感到紧张。谢谢！

编辑

这是我用来解析文本文件的代码；

//Read temp file to array
$pirep=file("temp.txt");
$num=count($pirep);

//Assign known variables
$pnum=explode(":",$pirep[2]);
$dca=$pnum[1];
$fltnum=explode(":",$pirep[1]);
$flt=$fltnum[1];
$date=$pirep[0];
//$dep=$pirep[5];
//$dest=$pirep[6];

//Determine if this is a mainenance division flight, set variable accordingly
for($i=0;$i<$num;$i++) {
    $line=$pirep[$i];
    if(strpos($line,"MAINT")!==FALSE) {
        $maint="yes"; } 
}

//Cycle through pirep array and find departure and destination airports
for($i=0;$i<$num;$i++) {
    $line=$pirep[$i];
    if(strpos($line,"Departing Airport")!==FALSE) {
        $dep=$pirep[$i]; }
}
for($i=0;$i<$num;$i++) {
    $line=$pirep[$i];
    if(strpos($line,"Destination Airport")!==FALSE) {
        $dest=$pirep[$i]; }
}

//Cycle through pirep and find Block to Block Duration
for($i=0;$i<$num;$i++) {
    $line=$pirep[$i];
    if(strpos($line,"Block to Block Duration")!== FALSE) {
        $duration=ltrim(strstr($line,"Duration"),"Duration:"); 
        $flttime=explode(":",$duration);
        $minutes=($flttime[0]*60)+$flttime[1]; } }

//Cycle through pirep and find comments if any exist
for($i=0;$i<$num;$i++) {
    $line=$pirep[$i];
    if(strpos($line,"comments")!== FALSE) {
        $raw_comments=ltrim(strstr($line,"comments "),"comments");
        $comments=addslashes($raw_comments); } }

//Connect to DCA and find pilot
include('connect_db.php');
$stmt="SELECT * FROM newpilots WHERE dca=$dca LIMIT 1";
$result=mysql_query($stmt);
if(!$result) {echo"<BR> Query error<BR>"; }
if(mysql_num_rows($result)==0) {echo "<BR>Pilot $dca Not Found<br>"; }
$count=mysql_num_rows($result);
    $lastname=mysql_result($result,0,'lastname');
    $firstname=mysql_result($result,0,'firstname');
    $current_minutes=mysql_result($result,0,'minutes');
    $email=mysql_result($result,0,'email');
    $name=$firstname." ".$lastname;

//Check for empty maint and comment variables
if(!isset($maint)) {$maint="no";}
if(!isset($comments)) {$comments="None";}
$timestamp=time();
$stmt="INSERT INTO pireps VALUES('','$dca','$name','$flt','$maint','$minutes','$comments','$timestamp')";
$result=mysql_query($stmt);
if(!$result) {echo "Query Error";}

$updated_minutes = $current_minutes + $minutes;
$stmt="UPDATE newpilots SET minutes='$updated_minutes', lastfile='$timestamp', flag='YES' WHERE dca=$dca";
$result=mysql_query($stmt);
if(!$result) {echo "Query Error Updating Roster"; }

                    $to  = 'email@hidden.com, ';
                    $headers = 'Cc: '.$email."\r\n";
                    $subject = "DC-3 Airways FSAcars Pirep Verification";
                    if($maint=="yes") { $headers = 'Cc: also.hidden.com' . "\r\n"; }
                    $headers .= 'From: admin@dcascreenshots.net'."\r\n";
                    $headers .= 'Reply-To: admin@dcascreenshots.net'."\r\n";
                    $body = "This is an automatic email generated by the DC-3 Airways FSAcars system.
The following information has been posted;

    Date Submitted: $date
    Pilot $dca
    Flight Number: $flt
    $dep
    $dest
    Duration: $duration
    Pilot's Comments:
    $comments

Please log in to the APS system to verify your hours. If there is a discrepancy, please contact a staff member.";

                if (!mail($to, $subject, $body, $headers)) {
                    echo "Email Not Sent.<br>"; }

这是一个示例文本文件；

[2015/05/30 22:58:00]
Flight IATA:PAJN-PADU
Pilot Number:0309
Company ICAO:DCA
Aircraft Type:DC3
Departing Airport: PAJN
Destination Airport: PADU
Online: No
Route:RUKIE V317 CSPER T278 HAPIT V440 CENTA T269 YAK V440 MDO T237 HOM V321 AKN T271 BINAL T227 MORDI G8 ZEBUV
Flight Level:10000
22:58  Zero fuel Weight: 21531 Lbs, Fuel Weight: 4664 Lbs
22:59  Parking Brakes off
22:59  Take-off
22:59  Take off Weight: 26187 Lbs
22:59  Wind: 261º @ 010 Knots Heading: 281º
22:59  POS N58º 21´ 17´´ W134º 34´ 32´´ 
22:59  Gear Up: 119 Knots
23:10  TOC
23:10  Fuel Weight: 4545 Lb
23:14  Wind:313º@001 Knots Heading: 272º Ground Speed: 166 Knots Altitude 9996 ft
23:29  Wind:322º@004 Knots Heading: 271º Ground Speed: 165 Knots Altitude 10059 ft
23:44  Wind:313º@007 Knots Heading: 320º Ground Speed: 160 Knots Altitude 10042 ft
23:59  Wind:297º@007 Knots Heading: 318º Ground Speed: 160 Knots Alt
itude 10049 ft
00:14  Wind:273º@008 Knots Heading: 317º Ground Speed: 161 Knots Altitude 10052 ft
00:28  Simulation Rate 2x
00:29  Wind:279º@009 Knots Heading: 270º Ground Speed: 158 Knots Altitude 10055 ft
00:44  Wind:289º@012 Knots Heading: 270º Ground Speed: 156 Knots Altitude 10072 ft
00:59  Wind:292º@012 Knots Heading: 269º Ground Speed: 157 Knots Altitude 10072 ft
01:14  Wind:288º@011 Knots Heading: 268º Ground Speed: 158 Knots Altitude 10075 ft
01:29  Wind:273º@009 Knots Heading: 266º Ground Speed: 159 Knots Altitude 10078 ft
01:44  Wind:261º@007 Knots Heading: 296º Ground Speed: 163 Knots Altitude 10062 ft
01:59  Wind:260º@005 Knots Heading: 295º Ground Speed: 164 Knots Altitude 10032 ft
02:14  Wind:238º@003 Knots Heading: 294º Ground Speed: 167 Knots Altitude 10026 ft
02:29  Wind:345º@004 Knots Heading: 295º Ground Speed: 166 Knots Altitude 10082 ft
02:44  Wind:356º@0
04 Knots Heading: 238º Ground Speed: 171 Knots Altitude 10009 ft
02:59  Wind:040º@003 Knots Heading: 236º Ground Speed: 173 Knots Altitude 10022 ft
03:14  Wind:070º@004 Knots Heading: 236º Ground Speed: 173 Knots Altitude 10052 ft
03:29  Wind:111º@008 Knots Heading: 233º Ground Speed: 174 Knots Altitude 10045 ft
03:44  Wind:137º@015 Knots Heading: 221º Ground Speed: 170 Knots Altitude 10036 ft
03:59  Wind:174º@015 Knots Heading: 221º Ground Speed: 163 Knots Altitude 10068 ft
04:14  Wind:182º@016 Knots Heading: 220º Ground Speed: 158 Knots Altitude 9940 ft
04:29  Wind:172º@022 Knots Heading: 218º Ground Speed: 156 Knots Altitude 9885 ft
04:44  Wind:164º@030 Knots Heading: 214º Ground Speed: 153 Knots Altitude 9921 ft
04:59  Wind:168º@031 Knots Heading: 214º Ground Speed: 151 Knots Altitude 9937 ft
05:14  Wind:164º@026 Knots Heading: 214º Ground Speed: 155 Knots Altitude 10029 f
t
05:29  Wind:158º@026 Knots Heading: 213º Ground Speed: 158 Knots Altitude 10000 ft
05:44  Wind:162º@021 Knots Heading: 245º Ground Speed: 171 Knots Altitude 10006 ft
05:56  Simulation Rate 1x
05:59  Wind:160º@023 Knots Heading: 243º Ground Speed: 170 Knots Altitude 10022 ft
06:14  Wind:167º@016 Knots Heading: 217º Ground Speed: 160 Knots Altitude 10013 ft
06:15  TOD
06:15  Fuel Weight: 1145 Lb
06:26  Gear Down: 143 Knots
06:26  Flaps:1 at 142 Knots
06:27  Flaps:2 at 142 Knots
06:29  Wind:120º@006 Knots Heading: 191º Ground Speed: 108 Knots Altitude 2470 ft
06:31  Flaps:4 at 105 Knots
06:34  TouchDown:Rate -124 ft/min Speed: 58 Knots
06:35  Flaps:0 at 39 Knots
06:35  Land
06:35  Wind:335º@010 Knots
06:35  Heading: 139º
06:35  Flight Duration: 07:36 
06:35  Landing Weight: 22577 Lbs
06:35  POS N53º 53´ 54´´ W166º 32´ 38´´ 
06:36  Parking brakes on
06:36  Block to Block Duratio
n: 07:37 
06:36  Final Fuel: 1044 Lbls
06:36  Spent Fuel: 3619 Lbls
06:36  Flight Length: 1221 NM
06:36  TOD Land Length: 43 NM

【问题讨论】：

你当前的代码是什么样子的？
您能否列出文本数据的规则，以便我们了解任何给定的数据行是如何组成的？最大文件大小是多少？将整个文件合并成一个字符串并在不太长的情况下搜索它可能同样简单。
另外所以最后你还是想让你的文本文件的所有行只有一个与下一行连接起来？
感谢您的回复！我编辑了我的原始问题以包含我到目前为止编写的 php 脚本和给我问题的文本文件的副本。请原谅我剧本中的任何新手错误，因为我是自学成才的。
如果您查看文本文件，您会看到每 1KB 的数据，用于写入文本文件的可执行文件写入行尾，无论它在哪里。这会导致您在以 23:59、02:44、05:14 开头的行以及显示“06:36 Block to Block Duratio”的行上看到的内容。理想的解决方案是删除该换行符并将该行和其后的行合并，因此显示为“06:36 Block to Block Duration: 07:37。”

标签： php arrays string

【解决方案1】：

知道了！这行得通；

if($i>=15) {
if(substr($line,2,1)!=":") {
    $first_line=str_replace(PHP_EOL,"",$pirep[$i-1]);
    $line=$first_line.$pirep[$i];
    echo $line."<br>";
    }
}

【讨论】：