=========== TEST CASE ===========

Question

我试图让python矩阵到php（努力解决这个问题超过20个小时）。我真的很感激你的帮助！

下面有两种情况：TEST和REAL。

TEST：将php的变量传递给python。将传递的变量导入python，将显式指定矩阵值。这个矩阵应该调用php。
REAL：将php的变量传递给python。随着变量，一个文件被提交到python。然后，解析的值被分配给矩阵，应该调用php。

它们具有完全相同的python运行输出以及相同的php代码。唯一的区别是，在REAL情况下，文件被提交到python脚本。 TEST python本身工作正常，REAL python本身工作正常，TEST php-python运行正常，但REAL php-python运行失败。所以我的猜测是php不允许python在文件中插入python脚本？我的代码如下：

=========== TEST CASE ===========

===== test.py

import os, sys, json
g = json.loads( sys.argv[1] )

gene = ['>MhA1_Contig0.frz3.gene1', '>MhA1_Contig0.frz3.gene1', '>MhA1_Contig0.frz3.gene1']
gene.append(g)
seq = ["ATGGAC", "GGCACAGC", "CCACC"]
seq.append('ACTGAAA')

print json.dumps(output)

===== test.php

$output=null;
$g = "0.CUFF.6.1_2";
$data = escapeshellarg(json_encode($g));
exec("python /mysql/getSeq/test.py $data 2>&1 &", $output );
//exec("python /mysql/getSeq/test.py $data 2>&1", $output );   --> worked fine
//exec("python /mysql/getSeq/test.py $data", $output );   --> worked fine
//print_r($output);   --> worked fine
//var_dump($output);   --> worked fine

$result = json_decode( exec("python /mysql/getSeq/test.py $data", $output ) , true);
//print_r( $result);   --> worked fine 
//var_dump($result);   --> worked fine
echo $result[0][0] . "<br>";
echo $result[0][1] . "<br>";
echo $result[1][0] . "<br>";
echo $result[1][1] . "<br>";

=====网页上的结果

>MhA1_Contig0.frz3.gene1
ATGGAC
>MhA1_Contig0.frz3.gene1
GGCACAGC

=========== REAL CASE ===========

===== real.py

import os, sys, json

inF = file("getSeq_Mh.fasta", "r")
g = json.loads( sys.argv[1] )

inF = file("getSeq_Mh.fasta", "r")
line = inF.readline()
matrix = []
--- (some codes here) ---
inF = file("getSeq_Mh.fasta", "r")
line = inF.readline()
gene = []
--- (some codes here) ---
for i in range(len(index)) : 
    output[i][0] = ">" + gene[i]
    output[i][1]= str(matrix[i])[2:-4]

print json.dumps(output)
# print output

===== real.php

$output=null;
$g = "0.CUFF.6.1_2";
$data = escapeshellarg(json_encode($g));
exec("python /mysql/getSeq/real.py $data  2>&1 &", $output );
//exec("python /mysql/getSeq/real.py $data  2>&1", $output );  --> no difference in results
//exec("python /mysql/getSeq/real.py $data", $output );   --> no difference in results
$result = json_decode( exec("python /mysql/getSeq/real.py $data 2>&1", $output ) , true);
print_r($output) . "<br>";
//var_dump($output) . "<br>";
//print_r( $result) . "<br>";
//var_dump($result) . "<br>";
//echo $result[0][0] . "<br>";
//echo $result[0][1] . "<br>";
//echo $result[1][0] . "<br>";
//echo $result[1][1] . "<br>";

=====网页上的结果

的print_r（$输出）; - ＆GT;错误

Array ( [0] => Traceback (most recent call last): [1] => File "/mysql/getSeq/getOne.py", line 3, in [2] => inF = file("getSeq_Mh.fasta", "r") [3] => IOError: [Errno 2] No such file or directory: 'getSeq_Mh.fasta' [4] => Traceback (most recent call last): [5] => File "/mysql/getSeq/real.py.py", line 3, in [6] => inF = file("getSeq_Mh.fasta", "r") [7] => IOError: [Errno 2] No such file or directory: 'getSeq_Mh.fasta' )

的var_dump（$输出）; - ＆GT;错误

array(8) { [0]=> string(34) "Traceback (most recent call last):" [1]=> string(95) " File "/mysql/getSeq/getOne.py", line 3, in " [2]=> string(38) " inF = file("getSeq_Mh.fasta", "r")" [3]=> string(63) "IOError: [Errno 2] No such file or directory: 'getSeq_Mh.fasta'" [4]=> string(34) "Traceback (most recent call last):" [5]=> string(95) " File "/mysql/getSeq/real.py.py", line 3, in " [6]=> string(38) " inF = file("getSeq_Mh.fasta", "r")" [7]=> string(63) "IOError: [Errno 2] No such file or directory: 'getSeq_Mh.fasta'" }

print_r（$ result）; - ＆GT;错误

(nothing)

的var_dump（$结果）; - ＆GT;错误

NULL

=========== PYTHON ITSELF ===========

[['>MhA1_Contig0.frz3.gene1', 'ATGGACT'], ['>MhA1_Contig0.frz3.gene1', 'GGCACAGC'], ['>MhA1_Contig0.frz3.gene1', 'CCACC']]

Answer 1

考虑使用PHP的proc_open()来处理子处理（输入/输出）;这里的子进程是Python脚本。下面在命令行调用Python，传递$data参数并接收$output参数。

可能需要调整两个假设： python 是服务器上的路径变量，Python脚本与PHP脚本位于同一目录中。如果没有，请在命令行中插入 python.exe 的完整路径和/或在命令行中将目录的完整路径插入 real.py 。

$output=null;
$g = "0.CUFF.6.1_2";
$data = escapeshellarg(json_encode($g));

$cd = dirname(__FILE__);                       // CURRENT DIRECTORY OF SCRIPT
$output = null;

$descriptorspec = array(
   0 => array("pipe", "r"),
   1 => array("pipe", "w"),
   2 => array("file", $cd."/error.txt", "a")   // ERROR TXT OUTPUT OF PROCESSING
);

/* CALLING COMMAND LINE */
$process = proc_open("python \"$cd/real.py\" \"$data\"" , $descriptorspec, $pipes, $cd); 

/* RECEIVING OUTPUT */
$output = stream_get_contents($pipes[1]);
fclose($pipes[1]);
proc_close($process);

echo $output;

Answer 2

它已经解决了。当我放入所有文件时（＆＃34; real.py＆＃34;，＆＃34; real.php＆＃34;和＆＃34; getSeq_Mh.fasta（已提交到real.py）＆＃ 34;）在同一目录中，它工作。

谢谢，Parfait。你的推荐给了我一个暗示。

如何“从python打印回复php？”

=========== TEST CASE ===========

=========== REAL CASE ===========

=========== PYTHON ITSELF ===========

2 个答案: