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问题 How do I edit a footer using tcpdf? I want to add current date & time at the footer. Please help. 回答1: Override the class like this : class MYPDF extends TCPDF { public function Footer() { $image_file = "img/bg_bottom_releve.jpg"; $this->Image($image_file, 11, 241, 189, '', 'JPG', '', 'T', false, 300, '', false, false, 0, false, false, false); $this->SetY(-15); $this->SetFont('helvetica', 'N', 6); $this->Cell(0, 5, date("m/d/Y H\hi:s"), 0, false, 'C', 0, '', 0, false, 'T', 'M'); } } then

问题 I have a program for which a setting in the .ini file seems to constantly revert. I find myself constantly checking the file to see if it needs to be edited, so I would like to see if I can come up with a batch file that will do this job. The idea is to create this batch file to scan the .ini file every 2 minutes to check the value of a particular line and change the value if necessary. The line is: UpdateSpeedCore=8 8 is the desired number for the check, but it sometimes reverts to 100. The

问题 I am having an issue with saving the edited fields in my MVC project. When I click the submit button I get an error Value cannot be null. Parameter name: items Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.ArgumentNullException: Value cannot be null. Parameter name: items Source Error: Line 63: Line 64: Line 65: @Html

问题 The Query I want to get from my database is not fully showing. Its about the $straat query. All the other queries are perfectly fine. Problem described : This is the normal result on the main page At Straat & Huisnummer its showing "Roelofs Mulderweg 3" This is the problem when I try to edit it with the script As you can see at Straat & Huisnummer the query is not fully showing anymore. THE PHP //selecting data associated with this particular id $result = mysql_query("SELECT * FROM tt WHERE

问题 Simple question from an absolute n00b. I'm trying to create an edit content screen based on the code given in the Blog Tutorial on the Cake site. Here's my edit function in the controller (it's named Contents): function edit( $id = null ) { $this->Content->id = $id; Debugger::dump( $this->Content->id ); if( empty( $this->data ) ) { $this->data = $this->Content->read(); Debugger::dump( $this->Content ); } else { if( $this->Content->save( $this->data ) ) { $this->Session->setFlash( 'Content has

问题 Given a bash array, how to convert it to a JSON array in order to output to a file with jq? Additionnally: is there a way to keep the server_nohup array unchanged instead of re-writing the whole json file each time? newArray=(100 200 300) jq -n --arg newArray $newArray '{ client_nohup: [ $newArray ], server_nohup: [ ] }' > $projectDir/.watch.json Current output: { "client_nohup": [ "100" ], "server_nohup": [] } Desired output: { "client_nohup": [ 100, 200, 300 ], "server_nohup": [] } 回答1: (1)

问题 Use-case: I started some nice docker image and my container needs some playing around (configuration file changes for research). I edit a file (using sed or vim ;-) ) and then I stop the container and try to start it. Now I made a mistake in the configuration and the docker container does not come up when I do: docker restart <my-container-id/-name> How can I edit the configuration-file to fix the mistake? 回答1: You can uses docker cp to copy files to/from a container, whether it's running or

问题 How can I write text to a file using sed? More specifically I would it add null variables to my blank text file that was created using touch. The syntax of sed is very confusing to me. 回答1: If you're just appending text to the end of the file then you wouldn't use sed in the first place. echo "some text" >> somefile.txt 回答2: Use $ a . sed -i "$ a some text" somefile.txt 回答3: Adding a late post because while the accepted answer is the simplest solution to this problem, the question actually

问题 When click on add to cart button, the Woocommerce shows the message, view cart, I want to edit this message, actually edit all the span, put some icon etc... 回答1: Add a filter to your theme/functions.php. The code below just overrides the existing $message. This overwrites $message with an nearly identical one that prepends a "checkout" link to the message. Make sure you return the $message. You can of course just modify the existing message, as the entire thing is passed as a string via the

问题 I have a video file. I want to get each frame of the video and do some modifications to the frame, such as drawing another bitmap in that, putting some text etc. Is there any API/framework available to get frames from video in Android? I've done something similar in iOS using their AVFramework. If it is possible with ffmpeg, I will use some of the opensource NDKs available. 回答1: Option A: You can create a SurfaceTexture object and attach this to the MediaPlayer as follows myPlayer = new